diff --git a/net/openvswitch/datapath.c b/net/openvswitch/datapath.c
index a2cd3e6..cae1062 100644
--- a/net/openvswitch/datapath.c
+++ b/net/openvswitch/datapath.c
@@ -395,6 +395,7 @@
 
 	skb_copy_and_csum_dev(skb, nla_data(nla));
 
+	genlmsg_end(user_skb, upcall);
 	err = genlmsg_unicast(net, user_skb, upcall_info->portid);
 
 out: