diff --git a/AppKit/CPWindow/CPWindow.j b/AppKit/CPWindow/CPWindow.j
index 1b0171c38..c2dd4e19e 100644
--- a/AppKit/CPWindow/CPWindow.j
+++ b/AppKit/CPWindow/CPWindow.j
@@ -1983,7 +1983,7 @@ CPTexturedBackgroundWindowMask
             var theWindow = [anEvent window],
                 selector = type == CPRightMouseDown ? @selector(rightMouseDown:) : @selector(mouseDown:);
 
-            if ([theWindow isKeyWindow] || ([theWindow becomesKeyOnlyIfNeeded] && ![_leftMouseDownView needsPanelToBecomeKey]))
+            if (([[CPApp orderedWindows] objectAtIndex:0] === self && [theWindow isKeyWindow]) || ([theWindow becomesKeyOnlyIfNeeded] && ![_leftMouseDownView needsPanelToBecomeKey]))
                 return [_leftMouseDownView performSelector:selector withObject:anEvent];
             else
             {