diff --git a/hw/darwin/apple/X11Application.m b/hw/darwin/apple/X11Application.m
index d0c493683..43cdbc62a 100644
--- a/hw/darwin/apple/X11Application.m
+++ b/hw/darwin/apple/X11Application.m
@@ -922,7 +922,7 @@ X11ApplicationMain (int argc, const char *argv[],
 	
     /* Calculate the height of the menubar so we can avoid it. */
     aquaMenuBarHeight = NSHeight([[NSScreen mainScreen] frame]) -
-	NSMaxY([[NSScreen mainScreen] visibleFrame]) - 1;
+      NSMaxY([[NSScreen mainScreen] visibleFrame]);
 	
     if (!create_thread (server_thread, server_arg))
     {