@@ -616,11 +616,11 @@
 {
 	return objc_sparsearray_get(cls->dtable, (uint32_t)sel->uid);
 }
 
 const char*
-objc_get_type_encoding(Class cls, SEL sel)
+class_getMethodTypeEncoding(Class cls, SEL sel)
 {
 	struct objc_method_list *ml;
 	struct objc_category **cats;
 	unsigned int i;
 
@@ -653,12 +653,12 @@
 		}
 	}
 
 	objc_global_mutex_unlock();
 
-	if (cls->superclass != NULL)
-		return objc_get_type_encoding(cls->superclass, sel);
+	if (cls->superclass != Nil)
+		return class_getMethodTypeEncoding(cls->superclass, sel);
 
 	return NULL;
 }
 
 IMP