diff --git a/lib/vty.c b/lib/vty.c
index 6b66a4d..d9eb921 100644
--- a/lib/vty.c
+++ b/lib/vty.c
@@ -1816,6 +1816,7 @@
       if (sock < 0)
 	continue;
 
+      sockopt_v6only (ainfo->ai_family, sock);
       sockopt_reuseaddr (sock);
       sockopt_reuseport (sock);