diff --git a/src/as/com/threerings/flash/DisablingButton.as b/src/as/com/threerings/flash/DisablingButton.as
index 0f900929..f8ac6d4d 100644
--- a/src/as/com/threerings/flash/DisablingButton.as
+++ b/src/as/com/threerings/flash/DisablingButton.as
@@ -101,7 +101,7 @@ public class DisablingButton extends SimpleButton
         super.upState = ((null != _disabledState && !super.enabled) ? _disabledState : _upState);
 
         // mouseEnabled is always false when the button is disabled
-        super.mouseEnabled = (!super.enabled ? _mouseEnabled : false);
+        super.mouseEnabled = (super.enabled ? _mouseEnabled : false);
     }
 
     protected var _disabledState :DisplayObject;