diff --git a/ui/drivers/ui_cocoa.m b/ui/drivers/ui_cocoa.m
index 0ebb1e9f3c..836f90b75e 100644
--- a/ui/drivers/ui_cocoa.m
+++ b/ui/drivers/ui_cocoa.m
@@ -448,8 +448,12 @@ extern void action_ok_push_quick_menu(void);
 
 int main(int argc, char *argv[])
 {
+   if (!strncmp(argv[1], "-psn", 4) && (argc==2))
+      argc = 1;
+    
    waiting_argc = argc;
    waiting_argv = argv;
+
    return NSApplicationMain(argc, (const char **) argv);
 }