diff --git a/src/as/com/threerings/mx/controls/CommandMenu.as b/src/as/com/threerings/mx/controls/CommandMenu.as
index 0f8901466..fa404b5ec 100644
--- a/src/as/com/threerings/mx/controls/CommandMenu.as
+++ b/src/as/com/threerings/mx/controls/CommandMenu.as
@@ -60,7 +60,7 @@ public class CommandMenu extends Menu
      * Actually pop up the menu. This can be used instead of show().
      */
     public function popUp (
-        trigger :DisplayObject, popUpwards :Boolean = true) :void
+        trigger :DisplayObject, popUpwards :Boolean = false) :void
     {
         var r :Rectangle = trigger.getBounds(trigger.stage);