diff --git a/include/wx/osx/chkconf.h b/include/wx/osx/chkconf.h
index c960923cc8..adb6999d06 100644
--- a/include/wx/osx/chkconf.h
+++ b/include/wx/osx/chkconf.h
@@ -40,25 +40,20 @@
     #define wxOSX_USE_CARBON 0
 #endif
 
+#ifdef __WXOSX_IPHONE__
+    #define wxOSX_USE_IPHONE 1
+#else
+    #define wxOSX_USE_IPHONE 0
+#endif
+
 /*
  * setting flags according to the platform
  */
 
 #ifdef __LP64__
-    #if wxOSX_USE_COCOA == 0
-        #undef wxOSX_USE_COCOA
-        #define wxOSX_USE_COCOA 1
-    #endif
     #if wxOSX_USE_CARBON
         #error "Carbon does not support 64bit"
     #endif
-    #define wxOSX_USE_IPHONE 0
-#else
-    #ifdef __WXOSX_IPHONE__
-        #define wxOSX_USE_IPHONE 1
-    #else
-        #define wxOSX_USE_IPHONE 0
-    #endif
 #endif
 
 /*