diff --git a/lcl/comctrls.pp b/lcl/comctrls.pp
index 5af7c47414..0395b446ca 100644
--- a/lcl/comctrls.pp
+++ b/lcl/comctrls.pp
@@ -1712,6 +1712,7 @@ type
     property OnMouseWheelUp;
     property OnResize;
     property OnSelectItem;
+    property OnShowHint;
     property OnStartDock;
     property OnStartDrag;
     property OnUTF8KeyPress;