diff --git a/src/plugins/cmakeprojectmanager/builddirmanager.cpp b/src/plugins/cmakeprojectmanager/builddirmanager.cpp
index 02d9de2d368..a68dd482201 100644
--- a/src/plugins/cmakeprojectmanager/builddirmanager.cpp
+++ b/src/plugins/cmakeprojectmanager/builddirmanager.cpp
@@ -280,7 +280,6 @@ void BuildDirManager::generateProjectTree(CMakeListsNode *root, const QList<cons
 
     const Utils::FileName projectFile = m_buildConfiguration->target()->project()->projectFilePath();
 
-    root->makeEmpty();
     m_reader->generateProjectTree(root, allFiles);
 
     // Make sure the top level CMakeLists.txt is always visible:
diff --git a/src/plugins/projectexplorer/projectnodes.cpp b/src/plugins/projectexplorer/projectnodes.cpp
index 29db6309189..2e02e5ff09f 100644
--- a/src/plugins/projectexplorer/projectnodes.cpp
+++ b/src/plugins/projectexplorer/projectnodes.cpp
@@ -593,15 +593,6 @@ void FolderNode::removeNode(Node *node)
     m_nodes.removeOne(node);
 }
 
-/*!
-  Removes all files and subfolders from this folder node.
-*/
-void FolderNode::makeEmpty()
-{
-    qDeleteAll(m_nodes);
-    m_nodes.clear();
-}
-
 bool FolderNode::showInSimpleTree() const
 {
     return false;
diff --git a/src/plugins/projectexplorer/projectnodes.h b/src/plugins/projectexplorer/projectnodes.h
index acf9fa05e38..176b126f64c 100644
--- a/src/plugins/projectexplorer/projectnodes.h
+++ b/src/plugins/projectexplorer/projectnodes.h
@@ -235,7 +235,6 @@ public:
     void addNode(Node *node);
     void removeNode(Node *node);
 
-    void makeEmpty();
     bool isEmpty() const;
 
     FolderNode *asFolderNode() override { return this; }
diff --git a/src/plugins/qbsprojectmanager/qbsnodetreebuilder.cpp b/src/plugins/qbsprojectmanager/qbsnodetreebuilder.cpp
index c525fb8e83c..2bad75e16e1 100644
--- a/src/plugins/qbsprojectmanager/qbsnodetreebuilder.cpp
+++ b/src/plugins/qbsprojectmanager/qbsnodetreebuilder.cpp
@@ -92,7 +92,6 @@ void setupQbsProductData(QbsProjectManager::Internal::QbsProductNode *node,
                          const qbs::ProductData &prd, const qbs::Project &project)
 {
     using namespace QbsProjectManager::Internal;
-    node->makeEmpty();
 
     node->setEnabled(prd.isEnabled());