diff --git a/include/net/netns/ipv4.h b/include/net/netns/ipv4.h
index 3872aa7..80680e0 100644
--- a/include/net/netns/ipv4.h
+++ b/include/net/netns/ipv4.h
@@ -5,6 +5,8 @@
 #ifndef __NETNS_IPV4_H__
 #define __NETNS_IPV4_H__
 
+#include <net/inet_frag.h>
+
 struct ctl_table_header;
 struct ipv4_devconf;
 struct fib_rules_ops;
@@ -22,5 +24,7 @@
 #endif
 	struct hlist_head	*fib_table_hash;
 	struct sock		*fibnl;
+
+	struct netns_frags	frags;
 };
 #endif