diff --git a/Objects/weakrefobject.c b/Objects/weakrefobject.c
index 538b21c..b65e5fd 100644
--- a/Objects/weakrefobject.c
+++ b/Objects/weakrefobject.c
@@ -594,7 +594,7 @@
     proxy_xor,              /*nb_xor*/
     proxy_or,               /*nb_or*/
     proxy_int,              /*nb_int*/
-    0,                      /*nb_long*/
+    0,                      /*nb_reserved*/
     proxy_float,            /*nb_float*/
     proxy_iadd,             /*nb_inplace_add*/
     proxy_isub,             /*nb_inplace_subtract*/