diff --git a/components/ideintf/objectinspector.pp b/components/ideintf/objectinspector.pp
index 088163e9a0..e207ca3177 100644
--- a/components/ideintf/objectinspector.pp
+++ b/components/ideintf/objectinspector.pp
@@ -807,8 +807,8 @@ uses
 
 type
   TOIHintWindow = class(THintWindow)
-  public
-    property OnMouseDown;
+  //public - For some reason the protected THintWindow.OnMouseDown is available, too.
+  //  property OnMouseDown;
   end;
 
 const