diff --git a/src/video/cocoa/cocoa_v.mm b/src/video/cocoa/cocoa_v.mm
index 2b6e9616df..fb60a6f166 100644
--- a/src/video/cocoa/cocoa_v.mm
+++ b/src/video/cocoa/cocoa_v.mm
@@ -58,7 +58,7 @@ static bool _cocoa_video_dialog = false;
 
 CocoaSubdriver *_cocoa_subdriver = NULL;
 
-static const NSString *OTTDMainLaunchGameEngine = @"ottdmain_launch_game_engine";
+static NSString *OTTDMainLaunchGameEngine = @"ottdmain_launch_game_engine";
 
 
 /**