diff --git a/src/posix/cocoa/i_common.h b/src/posix/cocoa/i_common.h
index 545540b2f..dc1e12121 100644
--- a/src/posix/cocoa/i_common.h
+++ b/src/posix/cocoa/i_common.h
@@ -50,12 +50,18 @@ struct RenderBufferOptions
 extern RenderBufferOptions rbOpts;
 
 
+// Version of AppKit framework we are interested in
+// The following values are needed to build with earlier SDKs
+
+#define AppKit10_4  824
+#define AppKit10_5  949
+#define AppKit10_6 1038
+#define AppKit10_7 1138
+
+
 inline bool I_IsHiDPISupported()
 {
-	// The following value shoud be equal to NSAppKitVersionNumber10_7
-	// and it's hard-coded in order to build on earlier SDKs
-	
-	return NSAppKitVersionNumber >= 1138;
+	return NSAppKitVersionNumber >= AppKit10_7;
 }
 
 void I_ProcessEvent(NSEvent* event);
diff --git a/src/posix/cocoa/i_video.mm b/src/posix/cocoa/i_video.mm
index 3fc2b2aed..a47a1f1a8 100644
--- a/src/posix/cocoa/i_video.mm
+++ b/src/posix/cocoa/i_video.mm
@@ -561,10 +561,7 @@ void CocoaVideo::SetWindowVisible(bool visible)
 
 static bool HasModernFullscreenAPI()
 {
-	// The following value shoud be equal to NSAppKitVersionNumber10_6
-	// and it's hard-coded in order to build on earlier SDKs
-
-	return NSAppKitVersionNumber >= 1038;
+	return NSAppKitVersionNumber >= AppKit10_6;
 }
 
 void CocoaVideo::SetStyleMask(const NSUInteger styleMask)