diff --git a/include/net/ipv6.h b/include/net/ipv6.h
index 7bdff04..bbf1c8f 100644
--- a/include/net/ipv6.h
+++ b/include/net/ipv6.h
@@ -658,6 +658,8 @@
 
 extern void ipv6_select_ident(struct frag_hdr *fhdr, struct rt6_info *rt);
 
+extern int ip6_dst_hoplimit(struct dst_entry *dst);
+
 /*
  *	Header manipulation
  */