diff --git a/panels/dock/dockhelper.cpp b/panels/dock/dockhelper.cpp
index 463bd48c4..f3997ab66 100644
--- a/panels/dock/dockhelper.cpp
+++ b/panels/dock/dockhelper.cpp
@@ -67,6 +67,11 @@ bool DockHelper::eventFilter(QObject *watched, QEvent *event)
         return false;
     }
 
+    // skip tooltip windows
+    if (window->flags().testFlags(Qt::ToolTip)) {
+        return false;
+    }
+
     auto topTransientParent = window;
     while (topTransientParent->transientParent()) {
         topTransientParent = topTransientParent->transientParent();
diff --git a/panels/dock/dockpanel.h b/panels/dock/dockpanel.h
index bd5cbf297..f574e586b 100644
--- a/panels/dock/dockpanel.h
+++ b/panels/dock/dockpanel.h
@@ -109,7 +109,7 @@ private Q_SLOTS:
 Q_SIGNALS:
     void geometryChanged(QRect geometry);
     void frontendWindowRectChanged(QRect frontendWindowRect);
-    void hideStateChanged(HideState state); // not emitted
+    void hideStateChanged(HideState state);
     void colorThemeChanged(ColorTheme theme);
     void compositorReadyChanged();