diff --git a/BBGE/Cocoa.mm b/BBGE/Cocoa.mm
index 693a809..a65a0ea 100644
--- a/BBGE/Cocoa.mm
+++ b/BBGE/Cocoa.mm
@@ -14,7 +14,7 @@ void cocoaMessageBox(const std::string &title, const std::string &msg)
     @autoreleasepool {
         NSString *nstitle = @(title.c_str());
         NSString *nsmsg = @(msg.c_str());
-        NSRunAlertPanel(nstitle, nsmsg, nil, nil, nil);
+        NSRunAlertPanel(nstitle, @"%@", nil, nil, nil, nsmsg);
     }
 }