diff --git a/net/netfilter/nf_conntrack_proto_dccp.c b/net/netfilter/nf_conntrack_proto_dccp.c
index 3850d68..5f84e2b 100644
--- a/net/netfilter/nf_conntrack_proto_dccp.c
+++ b/net/netfilter/nf_conntrack_proto_dccp.c
@@ -972,11 +972,32 @@ static struct pernet_operations dccp_net_ops = {
 
 static int __init nf_conntrack_proto_dccp_init(void)
 {
-	return register_pernet_subsys(&dccp_net_ops);
+	int ret;
+	ret = nf_conntrack_l4proto_register(&dccp_proto4);
+	if (ret < 0)
+		goto out_dccp4;
+
+	ret = nf_conntrack_l4proto_register(&dccp_proto6);
+	if (ret < 0)
+		goto out_dccp6;
+
+	ret = register_pernet_subsys(&dccp_net_ops);
+	if (ret < 0)
+		goto out_pernet;
+
+	return 0;
+out_pernet:
+	nf_conntrack_l4proto_unregister(&dccp_proto6);
+out_dccp6:
+	nf_conntrack_l4proto_unregister(&dccp_proto4);
+out_dccp4:
+	return ret;
 }
 
 static void __exit nf_conntrack_proto_dccp_fini(void)
 {
+	nf_conntrack_l4proto_unregister(&dccp_proto6);
+	nf_conntrack_l4proto_unregister(&dccp_proto4);
 	unregister_pernet_subsys(&dccp_net_ops);
 }