diff --git a/lcl/forms.pp b/lcl/forms.pp
index 614897bb35..dbbedf542f 100644
--- a/lcl/forms.pp
+++ b/lcl/forms.pp
@@ -662,6 +662,7 @@ type
     property OnResize;
     property OnShortCut;
     property OnShow;
+    property OnShowHint;
     property OnStartDock;
     property OnUnDock;
     property OnUTF8KeyPress;