diff --git a/src/plugins/projectexplorer/projectwindow.h b/src/plugins/projectexplorer/projectwindow.h
index 18d19f749c9f5295da5bc984eaa8722a879a8d8b..a868067bd71b7a7d86fa8adde60f196df9af28e0 100644
--- a/src/plugins/projectexplorer/projectwindow.h
+++ b/src/plugins/projectexplorer/projectwindow.h
@@ -61,8 +61,6 @@ private slots:
     void restoreStatus();
     void saveStatus();
 
-    void updateTreeWidget();
-
     void updateTreeWidgetStatupProjectChanged(ProjectExplorer::Project *startupProject);
     void updateTreeWidgetProjectAdded(ProjectExplorer::Project *addedProject);
     void updateTreeWidgetProjectRemoved(ProjectExplorer::Project *removedProject);