diff --git a/src/plugins/coreplugin/coreplugin.h b/src/plugins/coreplugin/coreplugin.h
index 0e8394eeeb6..4c61fc05e1b 100644
--- a/src/plugins/coreplugin/coreplugin.h
+++ b/src/plugins/coreplugin/coreplugin.h
@@ -96,7 +96,7 @@ private:
     MainWindow *m_mainWindow = nullptr;
     EditMode *m_editMode = nullptr;
     Locator *m_locator = nullptr;
-    FolderNavigationWidgetFactory *m_folderNavigationWidgetFactory;
+    FolderNavigationWidgetFactory *m_folderNavigationWidgetFactory = nullptr;
     Utils::Environment m_startupSystemEnvironment;
     Utils::EnvironmentItems m_environmentChanges;
 };