diff --git a/src/Train/VideoWindow.h b/src/Train/VideoWindow.h
index 4fa9dcb1e..6b2838d74 100644
--- a/src/Train/VideoWindow.h
+++ b/src/Train/VideoWindow.h
@@ -273,7 +273,7 @@ class VideoWindow : public GcChartWindow
         void showEvent(QShowEvent *event) override;
         void hideEvent(QHideEvent *event) override;
 
-        void resizeEvent(QResizeEvent *);
+        void resizeEvent(QResizeEvent *) override;
 
         // media data