diff --git a/src/mac/carbon/toplevel.cpp b/src/mac/carbon/toplevel.cpp
index 7a58cf7506..c4cd59574e 100644
--- a/src/mac/carbon/toplevel.cpp
+++ b/src/mac/carbon/toplevel.cpp
@@ -497,6 +497,10 @@ pascal OSStatus wxMacTopLevelMouseEventHandler( EventHandlerCallRef handler , Ev
 #endif
                 }
             }
+
+            // disabled windows must not get any input messages
+            if ( currentMouseWindow && !currentMouseWindow->MacIsReallyEnabled() )
+                currentMouseWindow = NULL;
         }
     }