diff --git a/net/dccp/dccp.h b/net/dccp/dccp.h
index 8f3903b..b6ea4cc 100644
--- a/net/dccp/dccp.h
+++ b/net/dccp/dccp.h
@@ -238,6 +238,7 @@
 
 extern int	   dccp_connect(struct sock *sk);
 extern int	   dccp_disconnect(struct sock *sk, int flags);
+extern void	   dccp_hash(struct sock *sk);
 extern void	   dccp_unhash(struct sock *sk);
 extern int	   dccp_getsockopt(struct sock *sk, int level, int optname,
 				   char __user *optval, int __user *optlen);