diff --git a/OpenRA.Launcher.Mac/Controller.m b/OpenRA.Launcher.Mac/Controller.m
index 5b96a0947b..791db648eb 100644
--- a/OpenRA.Launcher.Mac/Controller.m
+++ b/OpenRA.Launcher.Mac/Controller.m
@@ -125,6 +125,7 @@ extern char **environ;
 					 monoPath,
 					 [NSString stringWithFormat:@"UtilityPath=%@", [[[NSBundle mainBundle] executablePath] stringByAddingPercentEscapesUsingEncoding:NSASCIIStringEncoding]],
 					 [NSString stringWithFormat:@"SupportDir=%@",[@"~/Library/Application Support/OpenRA" stringByExpandingTildeInPath]],
+					 [NSString stringWithFormat:@"SpecialPackageRoot=%@/",[@"~/Library/Application Support/OpenRA" stringByExpandingTildeInPath]],
 					 nil];
 	FSRef appRef;
 	CFURLGetFSRef((CFURLRef)[NSURL URLWithString:[[[NSBundle mainBundle] executablePath] stringByAddingPercentEscapesUsingEncoding:NSASCIIStringEncoding]], &appRef);
diff --git a/OpenRA.Launcher.Mac/build/Release/OpenRA.app/Contents/MacOS/OpenRA b/OpenRA.Launcher.Mac/build/Release/OpenRA.app/Contents/MacOS/OpenRA
index 82e725fa14..6dd080c849 100755
Binary files a/OpenRA.Launcher.Mac/build/Release/OpenRA.app/Contents/MacOS/OpenRA and b/OpenRA.Launcher.Mac/build/Release/OpenRA.app/Contents/MacOS/OpenRA differ
diff --git a/OpenRA.Launcher.Mac/main.m b/OpenRA.Launcher.Mac/main.m
index 1da612fe84..8987557928 100644
--- a/OpenRA.Launcher.Mac/main.m
+++ b/OpenRA.Launcher.Mac/main.m
@@ -13,7 +13,7 @@ int main(int argc, char *argv[])
 {
 	/* When launching a mod, the arguments are of the form 
 	 * --launch <game dir> <mono path> <utility path> <support dir option> <mod option> */
-	if (argc >= 7 && strcmp(argv[1], "--launch") == 0)
+	if (argc >= 8 && strcmp(argv[1], "--launch") == 0)
 	{
 		/* Change into the game dir */
 		chdir(argv[3]);
@@ -25,6 +25,7 @@ int main(int argc, char *argv[])
 			"OpenRA.Game.exe",
 			argv[5],
 			argv[6],
+			argv[7],
 			NULL
 		};