diff --git a/include/wx/osx/core/cfref.h b/include/wx/osx/core/cfref.h
index 1885307e88..ab2a8b4d8a 100644
--- a/include/wx/osx/core/cfref.h
+++ b/include/wx/osx/core/cfref.h
@@ -68,8 +68,8 @@ template <class Type>
 inline Type* wxCFAutorelease(Type *r)
 {
     if ( r != NULL )
-        return (Type*)::CFAutorelease((CFTypeRef)r);
-    return NULL;
+        r = const_cast<Type*>(static_cast<const Type*>(::CFAutorelease(static_cast<CFTypeRef>(r))));
+    return r;
 }
 
 /*! @function   wxCFRetain