diff --git a/include/wx/mac/carbon/private.h b/include/wx/mac/carbon/private.h
index 1dccf0e3d6..8a02973a4d 100644
--- a/include/wx/mac/carbon/private.h
+++ b/include/wx/mac/carbon/private.h
@@ -564,5 +564,11 @@ void wxMacWakeUp() ;
 
 ControlRef wxMacFindControlUnderMouse( Point location , WindowRef window , ControlPartCode *outPart ) ;
 
+#ifdef TARGET_API_MAC_OSX
+#define kDefaultPathStyle kCFURLPOSIXPathStyle
+#else
+#define kDefaultPathStyle kCFURLHFSPathStyle
+#endif
+
 #endif
     // _WX_PRIVATE_H_