diff --git a/bgpd/bgp_attr.h b/bgpd/bgp_attr.h
index 777869c..124c450 100644
--- a/bgpd/bgp_attr.h
+++ b/bgpd/bgp_attr.h
@@ -129,8 +129,8 @@
                                 struct prefix_rd *, u_char *);
 extern void bgp_dump_routes_attr (struct stream *, struct attr *,
 				  struct prefix *);
-extern unsigned int attrhash_key_make (struct attr *);
-extern int attrhash_cmp (struct attr *, struct attr *);
+extern int attrhash_cmp (void *, void *);
+extern unsigned int attrhash_key_make (void *);
 extern void attr_show_all (struct vty *);
 extern unsigned long int attr_count (void);
 extern unsigned long int attr_unknown_count (void);