diff --git a/Include/modsupport.h b/Include/modsupport.h
index ee648a655bd..d406bf60d5c 100644
--- a/Include/modsupport.h
+++ b/Include/modsupport.h
@@ -7,5 +7,3 @@ struct methodlist {
 
 extern object *findmethod PROTO((struct methodlist *, object *, char *));
 extern object *initmodule PROTO((char *, struct methodlist *));
-extern int err_badargs PROTO((void));
-extern object *err_nomem PROTO((void));