diff --git a/include/net/udp_tunnel.h b/include/net/udp_tunnel.h
index 24ece06bad9eff61612d89f618d389ae0e2f03b8..97a739c21f1f80f60da434428aadcc6ed4985c66 100644
--- a/include/net/udp_tunnel.h
+++ b/include/net/udp_tunnel.h
@@ -47,7 +47,7 @@ int udp_sock_create6(struct net *net, struct udp_port_cfg *cfg,
 static inline int udp_sock_create6(struct net *net, struct udp_port_cfg *cfg,
 				   struct socket **sockp)
 {
-	return 0;
+	return -EPFNOSUPPORT;
 }
 #endif