newclassobject gets a third parameter (optional class name)
diff --git a/Include/classobject.h b/Include/classobject.h
index e8dd93a..fb52203 100644
--- a/Include/classobject.h
+++ b/Include/classobject.h
@@ -36,7 +36,7 @@
#define is_instanceobject(op) ((op)->ob_type == &Instancetype)
#define is_instancemethodobject(op) ((op)->ob_type == &Instancemethodtype)
-extern object *newclassobject PROTO((object *, object *));
+extern object *newclassobject PROTO((object *, object *, object *));
extern object *newinstanceobject PROTO((object *));
extern object *newinstancemethodobject PROTO((object *, object *));