diff --git a/src/plugins/clearcase/clearcaseplugin.cpp b/src/plugins/clearcase/clearcaseplugin.cpp
index f4ba55d0930..a1f4d3f5caa 100644
--- a/src/plugins/clearcase/clearcaseplugin.cpp
+++ b/src/plugins/clearcase/clearcaseplugin.cpp
@@ -2315,7 +2315,7 @@ public:
         m_editor(0)
     {
         ClearCasePlugin::instance()->setFakeCleartool(true);
-        VcsManager::instance()->clearVersionControlCache();
+        VcsManager::clearVersionControlCache();
 
         FileSaver srcSaver(fileName);
         srcSaver.write(QByteArray());
diff --git a/src/plugins/coreplugin/iversioncontrol.cpp b/src/plugins/coreplugin/iversioncontrol.cpp
index 1c11437d6cb..678e4ecc8c5 100644
--- a/src/plugins/coreplugin/iversioncontrol.cpp
+++ b/src/plugins/coreplugin/iversioncontrol.cpp
@@ -140,21 +140,21 @@ namespace Core {
 
 TestVersionControl::~TestVersionControl()
 {
-    VcsManager::instance()->clearVersionControlCache();
+    VcsManager::clearVersionControlCache();
 }
 
 void TestVersionControl::setManagedDirectories(const QHash<QString, QString> &dirs)
 {
     m_managedDirs = dirs;
     m_dirCount = 0;
-    VcsManager::instance()->clearVersionControlCache();
+    VcsManager::clearVersionControlCache();
 }
 
 void TestVersionControl::setManagedFiles(const QSet<QString> &files)
 {
     m_managedFiles = files;
     m_fileCount = 0;
-    VcsManager::instance()->clearVersionControlCache();
+    VcsManager::clearVersionControlCache();
 }
 
 bool TestVersionControl::managesDirectory(const QString &filename, QString *topLevel) const
diff --git a/src/plugins/coreplugin/vcsmanager.h b/src/plugins/coreplugin/vcsmanager.h
index 71e3adeaf83..e830f235081 100644
--- a/src/plugins/coreplugin/vcsmanager.h
+++ b/src/plugins/coreplugin/vcsmanager.h
@@ -92,13 +92,12 @@ public:
      */
     static QStringList additionalToolsPath();
 
+    static void clearVersionControlCache();
+
 signals:
     void repositoryChanged(const QString &repository);
     void configurationChanged(const IVersionControl *vcs);
 
-public slots:
-    static void clearVersionControlCache();
-
 private:
     explicit VcsManager(QObject *parent = 0);
     ~VcsManager();
diff --git a/src/plugins/vcsbase/commonsettingspage.cpp b/src/plugins/vcsbase/commonsettingspage.cpp
index 735defb4ae7..12f374bcbba 100644
--- a/src/plugins/vcsbase/commonsettingspage.cpp
+++ b/src/plugins/vcsbase/commonsettingspage.cpp
@@ -61,7 +61,7 @@ CommonSettingsWidget::CommonSettingsWidget(QWidget *parent) :
     connect(Core::VcsManager::instance(), &Core::VcsManager::configurationChanged,
             this, &CommonSettingsWidget::updatePath);
     connect(m_ui->cacheResetButton, &QPushButton::clicked,
-            this, [] { Core::VcsManager::clearVersionControlCache(); });
+            Core::VcsManager::instance(), &Core::VcsManager::clearVersionControlCache);
 }
 
 CommonSettingsWidget::~CommonSettingsWidget()