diff --git a/src/plugins/autotoolsprojectmanager/autotoolsproject.cpp b/src/plugins/autotoolsprojectmanager/autotoolsproject.cpp
index b41acdb3aa5..9d0e79949ef 100644
--- a/src/plugins/autotoolsprojectmanager/autotoolsproject.cpp
+++ b/src/plugins/autotoolsprojectmanager/autotoolsproject.cpp
@@ -28,7 +28,6 @@
 #include "autotoolsproject.h"
 #include "autotoolsbuildconfiguration.h"
 #include "autotoolsprojectconstants.h"
-#include "autotoolsprojectnode.h"
 #include "autotoolsopenprojectwizard.h"
 #include "makestep.h"
 #include "makefileparserthread.h"
@@ -40,6 +39,7 @@
 #include <projectexplorer/buildconfiguration.h>
 #include <projectexplorer/buildsteplist.h>
 #include <projectexplorer/projectexplorerconstants.h>
+#include <projectexplorer/projectnodes.h>
 #include <projectexplorer/target.h>
 #include <projectexplorer/headerpath.h>
 #include <extensionsystem/pluginmanager.h>
@@ -207,7 +207,7 @@ void AutotoolsProject::makefileParsingFinished()
         m_watchedFiles.append(absConfigureAc);
     }
 
-    auto newRoot = std::make_unique<AutotoolsProjectNode>(projectDirectory());
+    auto newRoot = std::make_unique<ProjectNode>(projectDirectory());
     for (const QString &f : m_files) {
         const Utils::FileName path = Utils::FileName::fromString(f);
         newRoot->addNestedNode(std::make_unique<FileNode>(path,
diff --git a/src/plugins/autotoolsprojectmanager/autotoolsprojectmanager.pro b/src/plugins/autotoolsprojectmanager/autotoolsprojectmanager.pro
index a58d556dda6..8082c55c3f4 100644
--- a/src/plugins/autotoolsprojectmanager/autotoolsprojectmanager.pro
+++ b/src/plugins/autotoolsprojectmanager/autotoolsprojectmanager.pro
@@ -2,7 +2,6 @@ include(../../qtcreatorplugin.pri)
 
 HEADERS = autotoolsprojectplugin.h\
           autotoolsopenprojectwizard.h\
-          autotoolsprojectnode.h\
           autotoolsproject.h\
           autotoolsbuildsettingswidget.h\
           autotoolsbuildconfiguration.h\
@@ -13,9 +12,9 @@ HEADERS = autotoolsprojectplugin.h\
           configurestep.h\
           makefileparserthread.h\
           makefileparser.h
+
 SOURCES = autotoolsprojectplugin.cpp\
           autotoolsopenprojectwizard.cpp\
-          autotoolsprojectnode.cpp\
           autotoolsproject.cpp\
           autotoolsbuildsettingswidget.cpp\
           autotoolsbuildconfiguration.cpp\
diff --git a/src/plugins/autotoolsprojectmanager/autotoolsprojectmanager.qbs b/src/plugins/autotoolsprojectmanager/autotoolsprojectmanager.qbs
index 02ab46557ce..f2354d52db4 100644
--- a/src/plugins/autotoolsprojectmanager/autotoolsprojectmanager.qbs
+++ b/src/plugins/autotoolsprojectmanager/autotoolsprojectmanager.qbs
@@ -25,8 +25,6 @@ QtcPlugin {
         "autotoolsproject.cpp",
         "autotoolsproject.h",
         "autotoolsprojectconstants.h",
-        "autotoolsprojectnode.cpp",
-        "autotoolsprojectnode.h",
         "autotoolsprojectplugin.cpp",
         "autotoolsprojectplugin.h",
         "configurestep.cpp",
diff --git a/src/plugins/autotoolsprojectmanager/autotoolsprojectnode.cpp b/src/plugins/autotoolsprojectmanager/autotoolsprojectnode.cpp
deleted file mode 100644
index 793d63a7629..00000000000
--- a/src/plugins/autotoolsprojectmanager/autotoolsprojectnode.cpp
+++ /dev/null
@@ -1,44 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2016 Openismus GmbH.
-** Author: Peter Penz (ppenz@openismus.com)
-** Author: Patricia Santana Cruz (patriciasantanacruz@gmail.com)
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of Qt Creator.
-**
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 3 as published by the Free Software
-** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-3.0.html.
-**
-****************************************************************************/
-
-#include "autotoolsprojectnode.h"
-#include "autotoolsproject.h"
-
-#include <coreplugin/idocument.h>
-
-using namespace AutotoolsProjectManager;
-using namespace AutotoolsProjectManager::Internal;
-using namespace ProjectExplorer;
-
-AutotoolsProjectNode::AutotoolsProjectNode(const Utils::FileName &projectDirectory) :
-    ProjectNode(projectDirectory)
-{ }
-
-bool AutotoolsProjectNode::showInSimpleTree() const
-{
-    return true;
-}
diff --git a/src/plugins/autotoolsprojectmanager/autotoolsprojectnode.h b/src/plugins/autotoolsprojectmanager/autotoolsprojectnode.h
deleted file mode 100644
index a60479eb8cb..00000000000
--- a/src/plugins/autotoolsprojectmanager/autotoolsprojectnode.h
+++ /dev/null
@@ -1,57 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2016 Openismus GmbH.
-** Author: Peter Penz (ppenz@openismus.com)
-** Author: Patricia Santana Cruz (patriciasantanacruz@gmail.com)
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of Qt Creator.
-**
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 3 as published by the Free Software
-** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-3.0.html.
-**
-****************************************************************************/
-
-#pragma once
-
-#include <projectexplorer/projectnodes.h>
-
-namespace Core { class IDocument; }
-
-namespace AutotoolsProjectManager {
-namespace Internal {
-
-class AutotoolsProject;
-
-/**
- * @brief Implementation of the ProjectExplorer::ProjectNode interface.
- *
- * A project node represents a file or a folder of the project tree.
- * No special operations (addFiles(), removeFiles(), renameFile(), ..)
- * are offered.
- *
- * @see AutotoolsProject
- */
-class AutotoolsProjectNode : public ProjectExplorer::ProjectNode
-{
-public:
-    AutotoolsProjectNode(const Utils::FileName &projectDirectory);
-
-    bool showInSimpleTree() const override;
-};
-
-} // namespace Internal
-} // namespace AutotoolsProjectManager
diff --git a/src/plugins/cmakeprojectmanager/cmakeprojectnodes.cpp b/src/plugins/cmakeprojectmanager/cmakeprojectnodes.cpp
index ac1f832bc97..feffd990fe9 100644
--- a/src/plugins/cmakeprojectmanager/cmakeprojectnodes.cpp
+++ b/src/plugins/cmakeprojectmanager/cmakeprojectnodes.cpp
@@ -115,11 +115,6 @@ CMakeInputsNode::CMakeInputsNode(const Utils::FileName &cmakeLists) :
     setListInProject(false);
 }
 
-bool CMakeInputsNode::showInSimpleTree() const
-{
-    return true;
-}
-
 CMakeListsNode::CMakeListsNode(const Utils::FileName &cmakeListPath) :
     ProjectExplorer::ProjectNode(cmakeListPath)
 {
@@ -152,11 +147,6 @@ CMakeProjectNode::CMakeProjectNode(const Utils::FileName &directory) :
     setListInProject(false);
 }
 
-bool CMakeProjectNode::showInSimpleTree() const
-{
-    return true;
-}
-
 QString CMakeProjectNode::tooltip() const
 {
     return QString();
@@ -181,11 +171,6 @@ QString CMakeTargetNode::generateId(const Utils::FileName &directory, const QStr
     return directory.toString() + "///::///" + target;
 }
 
-bool CMakeTargetNode::showInSimpleTree() const
-{
-    return true;
-}
-
 QString CMakeTargetNode::tooltip() const
 {
     return m_tooltip;
diff --git a/src/plugins/cmakeprojectmanager/cmakeprojectnodes.h b/src/plugins/cmakeprojectmanager/cmakeprojectnodes.h
index ba53326ad01..60bae806af6 100644
--- a/src/plugins/cmakeprojectmanager/cmakeprojectnodes.h
+++ b/src/plugins/cmakeprojectmanager/cmakeprojectnodes.h
@@ -34,8 +34,6 @@ class CMakeInputsNode : public ProjectExplorer::ProjectNode
 {
 public:
     CMakeInputsNode(const Utils::FileName &cmakeLists);
-
-    bool showInSimpleTree() const final;
 };
 
 class CMakeListsNode : public ProjectExplorer::ProjectNode
@@ -53,7 +51,6 @@ class CMakeProjectNode : public ProjectExplorer::ProjectNode
 public:
     CMakeProjectNode(const Utils::FileName &directory);
 
-    bool showInSimpleTree() const final;
     QString tooltip() const final;
 
     bool addFiles(const QStringList &filePaths, QStringList *notAdded) override;
@@ -68,7 +65,6 @@ public:
 
     void setTargetInformation(const QList<Utils::FileName> &artifacts, const QString &type);
 
-    bool showInSimpleTree() const final;
     QString tooltip() const final;
     QString buildKey() const final;
 
diff --git a/src/plugins/genericprojectmanager/genericproject.cpp b/src/plugins/genericprojectmanager/genericproject.cpp
index ebc53187f9a..f58e5bff010 100644
--- a/src/plugins/genericprojectmanager/genericproject.cpp
+++ b/src/plugins/genericprojectmanager/genericproject.cpp
@@ -129,8 +129,6 @@ public:
         setDisplayName(project->projectFilePath().toFileInfo().completeBaseName());
     }
 
-    bool showInSimpleTree() const override { return true; }
-
     bool supportsAction(ProjectAction action, const Node *) const override
     {
         return action == AddNewFile
diff --git a/src/plugins/projectexplorer/projectnodes.h b/src/plugins/projectexplorer/projectnodes.h
index 2357dc14098..c2596497a2b 100644
--- a/src/plugins/projectexplorer/projectnodes.h
+++ b/src/plugins/projectexplorer/projectnodes.h
@@ -337,6 +337,7 @@ public:
 
     bool isFolderNodeType() const override { return false; }
     bool isProjectNodeType() const override { return true; }
+    bool showInSimpleTree() const override { return true; }
 
     bool addFiles(const QStringList &filePaths, QStringList *notAdded = nullptr) override;
     bool removeFiles(const QStringList &filePaths, QStringList *notRemoved = nullptr) override;
diff --git a/src/plugins/pythoneditor/pythoneditorplugin.cpp b/src/plugins/pythoneditor/pythoneditorplugin.cpp
index 4acb367622b..9de4989a936 100644
--- a/src/plugins/pythoneditor/pythoneditorplugin.cpp
+++ b/src/plugins/pythoneditor/pythoneditorplugin.cpp
@@ -115,7 +115,6 @@ class PythonProjectNode : public ProjectNode
 public:
     PythonProjectNode(PythonProject *project);
 
-    bool showInSimpleTree() const override;
     bool supportsAction(ProjectAction action, const Node *node) const override;
     bool addFiles(const QStringList &filePaths, QStringList *) override;
     bool removeFiles(const QStringList &filePaths, QStringList *) override;
@@ -611,11 +610,6 @@ QHash<QString, QStringList> sortFilesIntoPaths(const QString &base, const QSet<Q
     return filesInPath;
 }
 
-bool PythonProjectNode::showInSimpleTree() const
-{
-    return true;
-}
-
 bool PythonProjectNode::supportsAction(ProjectAction action, const Node *node) const
 {
     if (node->asFileNode())  {
diff --git a/src/plugins/qbsprojectmanager/qbsnodes.cpp b/src/plugins/qbsprojectmanager/qbsnodes.cpp
index c5830b176a6..9ceb32c0337 100644
--- a/src/plugins/qbsprojectmanager/qbsnodes.cpp
+++ b/src/plugins/qbsprojectmanager/qbsnodes.cpp
@@ -330,11 +330,6 @@ QbsProductNode::QbsProductNode(const qbs::ProductData &prd) :
     setIcon(productIcon);
 }
 
-bool QbsProductNode::showInSimpleTree() const
-{
-    return true;
-}
-
 bool QbsProductNode::supportsAction(ProjectAction action, const Node *node) const
 {
     if (action == AddNewFile || action == AddExistingFile)
@@ -425,11 +420,6 @@ const qbs::Project QbsProjectNode::qbsProject() const
     return project()->qbsProject();
 }
 
-bool QbsProjectNode::showInSimpleTree() const
-{
-    return true;
-}
-
 void QbsProjectNode::setProjectData(const qbs::ProjectData &data)
 {
     m_projectData = data;
diff --git a/src/plugins/qbsprojectmanager/qbsnodes.h b/src/plugins/qbsprojectmanager/qbsnodes.h
index ab0ebb96583..db1a7b0ef1c 100644
--- a/src/plugins/qbsprojectmanager/qbsnodes.h
+++ b/src/plugins/qbsprojectmanager/qbsnodes.h
@@ -44,6 +44,7 @@ class QbsGroupNode : public ProjectExplorer::ProjectNode
 public:
     QbsGroupNode(const qbs::GroupData &grp, const QString &productPath);
 
+    bool showInSimpleTree() const final { return false; }
     bool supportsAction(ProjectExplorer::ProjectAction action, const Node *node) const final;
     bool addFiles(const QStringList &filePaths, QStringList *notAdded = nullptr) override;
     bool removeFiles(const QStringList &filePaths, QStringList *notRemoved = nullptr) override;
@@ -65,7 +66,6 @@ class QbsProductNode : public ProjectExplorer::ProjectNode
 public:
     explicit QbsProductNode(const qbs::ProductData &prd);
 
-    bool showInSimpleTree() const override;
     bool supportsAction(ProjectExplorer::ProjectAction action, const Node *node) const final;
     bool addFiles(const QStringList &filePaths, QStringList *notAdded = nullptr) override;
     bool removeFiles(const QStringList &filePaths, QStringList *notRemoved = nullptr) override;
@@ -93,7 +93,6 @@ public:
     const qbs::Project qbsProject() const;
     const qbs::ProjectData qbsProjectData() const { return m_projectData; }
 
-    bool showInSimpleTree() const override;
     void setProjectData(const qbs::ProjectData &data); // FIXME: Needed?
 
 private:
diff --git a/src/plugins/qmlprojectmanager/qmlprojectnodes.cpp b/src/plugins/qmlprojectmanager/qmlprojectnodes.cpp
index 32d4f5292ae..7b311c2cf63 100644
--- a/src/plugins/qmlprojectmanager/qmlprojectnodes.cpp
+++ b/src/plugins/qmlprojectmanager/qmlprojectnodes.cpp
@@ -53,11 +53,6 @@ QmlProjectNode::QmlProjectNode(QmlProject *project) : ProjectNode(project->proje
     setIcon(qmlProjectIcon);
 }
 
-bool QmlProjectNode::showInSimpleTree() const
-{
-    return true;
-}
-
 bool QmlProjectNode::supportsAction(ProjectAction action, const Node *node) const
 {
     if (action == AddNewFile || action == EraseFile)
diff --git a/src/plugins/qmlprojectmanager/qmlprojectnodes.h b/src/plugins/qmlprojectmanager/qmlprojectnodes.h
index 6a3f688b3d3..4d6fe4cfcf1 100644
--- a/src/plugins/qmlprojectmanager/qmlprojectnodes.h
+++ b/src/plugins/qmlprojectmanager/qmlprojectnodes.h
@@ -38,7 +38,6 @@ class QmlProjectNode : public ProjectExplorer::ProjectNode
 public:
     QmlProjectNode(QmlProject *project);
 
-    bool showInSimpleTree() const override;
     bool supportsAction(ProjectExplorer::ProjectAction action, const Node *node) const override;
     bool addFiles(const QStringList &filePaths, QStringList *notAdded = nullptr) override;
     bool deleteFiles(const QStringList &filePaths) override;