diff --git a/source/common/platform/posix/cocoa/i_main.mm b/source/common/platform/posix/cocoa/i_main.mm
index 21b4b3bef..3e257a5ce 100644
--- a/source/common/platform/posix/cocoa/i_main.mm
+++ b/source/common/platform/posix/cocoa/i_main.mm
@@ -213,13 +213,6 @@ int DoMain(int argc, char** argv)
 	setenv("LC_NUMERIC", "C", 1);
 	setlocale(LC_ALL, "C");
 
-	// Set reasonable default values for video settings
-
-	const NSSize screenSize = [[NSScreen mainScreen] frame].size;
-	vid_defwidth  = static_cast<int>(screenSize.width);
-	vid_defheight = static_cast<int>(screenSize.height);
-	vid_vsync     = true;
-
 	Args = new FArgs(argc, argv);
 
 	NSString* exePath = [[NSBundle mainBundle] executablePath];