diff --git a/net/socket/net_dup2.c b/net/socket/net_dup2.c
index c36981fb4c..2482936105 100644
--- a/net/socket/net_dup2.c
+++ b/net/socket/net_dup2.c
@@ -104,7 +104,9 @@ int psock_dup2(FAR struct socket *psock1, FAR struct socket *psock2)
 
   conn = (FAR struct tcp_conn_s *)psock2->s_conn;
 
-  if (psock2->s_type == SOCK_STREAM && conn &&
+  if ((psock2->s_domain == PF_INET ||
+       psock2->s_domain == PF_INET6) &&
+      psock2->s_type == SOCK_STREAM && conn &&
       (conn->tcpstateflags == TCP_ESTABLISHED ||
        conn->tcpstateflags == TCP_SYN_RCVD))
     {