diff --git a/include/net/inet_frag.h b/include/net/inet_frag.h
index 3695ff4..7374251 100644
--- a/include/net/inet_frag.h
+++ b/include/net/inet_frag.h
@@ -54,6 +54,7 @@
 void inet_frags_fini(struct inet_frags *);
 
 void inet_frags_init_net(struct netns_frags *nf);
+void inet_frags_exit_net(struct netns_frags *nf, struct inet_frags *f);
 
 void inet_frag_kill(struct inet_frag_queue *q, struct inet_frags *f);
 void inet_frag_destroy(struct inet_frag_queue *q,