diff --git a/src/plugins/coreplugin/externaltool.cpp b/src/plugins/coreplugin/externaltool.cpp
index 6dffaa0310b..2ef5e7e9ca5 100644
--- a/src/plugins/coreplugin/externaltool.cpp
+++ b/src/plugins/coreplugin/externaltool.cpp
@@ -51,7 +51,6 @@ using namespace Utils;
 using namespace Core::Internal;
 
 namespace Core {
-namespace Internal {
 
 const char kExternalTool[] = "externaltool";
 const char kId[] = "id";
@@ -331,7 +330,7 @@ static void localizedText(const QStringList &locales, QXmlStreamReader *reader,
         }
     } else {
         if (*currentLocale < 0 && currentText->isEmpty()) {
-            *currentText = QCoreApplication::translate("Core::Internal::ExternalTool",
+            *currentText = QCoreApplication::translate("Core::ExternalTool",
                                                        reader->readElementText().toUtf8().constData(),
                                                        "");
         } else {
@@ -721,6 +720,4 @@ void ExternalToolRunner::readStandardError()
         m_processOutput.append(output);
 }
 
-} // namespace Internal
-
 } // namespace Core
diff --git a/src/plugins/coreplugin/externaltool.h b/src/plugins/coreplugin/externaltool.h
index 38fc517bd2d..caec43258c1 100644
--- a/src/plugins/coreplugin/externaltool.h
+++ b/src/plugins/coreplugin/externaltool.h
@@ -25,6 +25,8 @@
 
 #pragma once
 
+#include <coreplugin/core_global.h>
+
 #include <utils/environment.h>
 #include <utils/fileutils.h>
 #include <utils/id.h>
@@ -38,9 +40,8 @@
 
 namespace Utils { class QtcProcess; }
 namespace Core {
-namespace Internal {
 
-class ExternalTool : public QObject
+class CORE_EXPORT ExternalTool : public QObject
 {
     Q_OBJECT
 
@@ -123,7 +124,7 @@ private:
     QSharedPointer<ExternalTool> m_presetTool;
 };
 
-class ExternalToolRunner : public QObject
+class CORE_EXPORT ExternalToolRunner : public QObject
 {
     Q_OBJECT
 public:
@@ -158,7 +159,6 @@ private:
     QString m_errorString;
 };
 
-} // Internal
 } // Core
 
-Q_DECLARE_METATYPE(Core::Internal::ExternalTool *)
+Q_DECLARE_METATYPE(Core::ExternalTool *)
diff --git a/src/plugins/coreplugin/externaltoolmanager.cpp b/src/plugins/coreplugin/externaltoolmanager.cpp
index 94bd49495a4..5753273e05a 100644
--- a/src/plugins/coreplugin/externaltoolmanager.cpp
+++ b/src/plugins/coreplugin/externaltoolmanager.cpp
@@ -61,13 +61,6 @@ static ExternalToolManager *m_instance = nullptr;
 static ExternalToolManagerPrivate *d = nullptr;
 
 static void writeSettings();
-static void readSettings(const QMap<QString, ExternalTool *> &tools,
-                  QMap<QString, QList<ExternalTool*> > *categoryPriorityMap);
-
-static void parseDirectory(const QString &directory,
-                     QMap<QString, QMultiMap<int, ExternalTool*> > *categoryMenus,
-                     QMap<QString, ExternalTool *> *tools,
-                     bool isPreset = false);
 
 ExternalToolManager::ExternalToolManager()
     : QObject(ICore::instance())
@@ -120,7 +113,7 @@ ExternalToolManager *ExternalToolManager::instance()
     return m_instance;
 }
 
-static void parseDirectory(const QString &directory,
+void ExternalToolManager::parseDirectory(const QString &directory,
                            QMap<QString, QMultiMap<int, ExternalTool*> > *categoryMenus,
                            QMap<QString, ExternalTool *> *tools,
                            bool isPreset)
@@ -254,7 +247,7 @@ void ExternalToolManager::setToolsByCategory(const QMap<QString, QList<ExternalT
     mexternaltools->menu()->addAction(d->m_configureAction);
 }
 
-static void readSettings(const QMap<QString, ExternalTool *> &tools,
+void ExternalToolManager::readSettings(const QMap<QString, ExternalTool *> &tools,
                                        QMap<QString, QList<ExternalTool *> > *categoryMap)
 {
     QSettings *settings = ICore::settings();
diff --git a/src/plugins/coreplugin/externaltoolmanager.h b/src/plugins/coreplugin/externaltoolmanager.h
index 23ec6adc8af..67a932fee81 100644
--- a/src/plugins/coreplugin/externaltoolmanager.h
+++ b/src/plugins/coreplugin/externaltoolmanager.h
@@ -34,7 +34,7 @@
 
 namespace Core {
 
-namespace Internal { class ExternalTool; }
+class ExternalTool;
 
 class CORE_EXPORT ExternalToolManager : public QObject
 {
@@ -45,10 +45,17 @@ public:
     ~ExternalToolManager() override;
 
     static ExternalToolManager *instance();
-    static QMap<QString, QList<Internal::ExternalTool *> > toolsByCategory();
-    static QMap<QString, Internal::ExternalTool *> toolsById();
-    static void setToolsByCategory(const QMap<QString, QList<Internal::ExternalTool *> > &tools);
+    static QMap<QString, QList<ExternalTool *> > toolsByCategory();
+    static QMap<QString, ExternalTool *> toolsById();
+    static void setToolsByCategory(const QMap<QString, QList<ExternalTool *> > &tools);
     static void emitReplaceSelectionRequested(const QString &output);
+    static void readSettings(const QMap<QString, ExternalTool *> &tools,
+                      QMap<QString, QList<ExternalTool*> > *categoryPriorityMap);
+
+    static void parseDirectory(const QString &directory,
+                         QMap<QString, QMultiMap<int, ExternalTool*> > *categoryMenus,
+                         QMap<QString, ExternalTool *> *tools,
+                         bool isPreset = false);
 
 signals:
     void replaceSelectionRequested(const QString &text);
diff --git a/tests/auto/externaltool/CMakeLists.txt b/tests/auto/externaltool/CMakeLists.txt
index 944c3dc671c..c897bd6e8ac 100644
--- a/tests/auto/externaltool/CMakeLists.txt
+++ b/tests/auto/externaltool/CMakeLists.txt
@@ -2,6 +2,4 @@ add_qtc_test(tst_externaltooltest
   DEPENDS Core app_version
   SOURCES
     tst_externaltooltest.cpp
-    "${PROJECT_SOURCE_DIR}/src/plugins/coreplugin/externaltool.cpp"
-    "${PROJECT_SOURCE_DIR}/src/plugins/coreplugin/externaltool.h"
 )
diff --git a/tests/auto/externaltool/externaltool.qbs b/tests/auto/externaltool/externaltool.qbs
index 932ad725fb7..74dcdfefa7d 100644
--- a/tests/auto/externaltool/externaltool.qbs
+++ b/tests/auto/externaltool/externaltool.qbs
@@ -5,15 +5,6 @@ QtcAutotest {
     Depends { name: "Core" }
     Depends { name: "app_version_header" }
 
-    Group {
-        name: "Duplicated sources from Core plugin" // Ewww. But the .pro file does the same.
-        prefix: project.ide_source_tree + "/src/plugins/coreplugin/"
-        files: [
-            "externaltool.cpp",
-            "externaltool.h"
-        ]
-    }
-
     Group {
         name: "Test sources"
         files: "tst_externaltooltest.cpp"
diff --git a/tests/auto/externaltool/tst_externaltooltest.cpp b/tests/auto/externaltool/tst_externaltooltest.cpp
index e7addf7a10c..dbd60bc8e34 100644
--- a/tests/auto/externaltool/tst_externaltooltest.cpp
+++ b/tests/auto/externaltool/tst_externaltooltest.cpp
@@ -28,7 +28,7 @@
 
 #include <coreplugin/externaltool.h>
 
-using namespace Core::Internal;
+using namespace Core;
 using namespace Utils;
 
 static const char TEST_XML1[] =