diff --git a/net/netfilter/nf_conntrack_proto_generic.c b/net/netfilter/nf_conntrack_proto_generic.c
index e831637bc8ca..cb260eb3d012 100644
--- a/net/netfilter/nf_conntrack_proto_generic.c
+++ b/net/netfilter/nf_conntrack_proto_generic.c
@@ -67,6 +67,7 @@ void nf_conntrack_generic_init_net(struct net *net)
 const struct nf_conntrack_l4proto nf_conntrack_l4proto_generic =
 {
 	.l4proto		= 255,
+	.allow_clash            = true,
 #ifdef CONFIG_NF_CONNTRACK_TIMEOUT
 	.ctnl_timeout		= {
 		.nlattr_to_obj	= generic_timeout_nlattr_to_obj,