diff --git a/modules/highgui/src/window_cocoa.mm b/modules/highgui/src/window_cocoa.mm
index 977d61924c..4542fb292b 100644
--- a/modules/highgui/src/window_cocoa.mm
+++ b/modules/highgui/src/window_cocoa.mm
@@ -150,7 +150,7 @@ CV_IMPL int cvInitSystem( int , char** )
 #define NSAppKitVersionNumber10_5 949
 #endif
     if( floor(NSAppKitVersionNumber) > NSAppKitVersionNumber10_5 )
-        [application setActivationPolicy:0/*NSApplicationActivationPolicyRegular*/];
+        [application setActivationPolicy:NSApplicationActivationPolicyRegular];
 #endif
     //[application finishLaunching];
     //atexit(icvCocoaCleanup);