diff --git a/src/cfgparse.c b/src/cfgparse.c
index 7fc499a..c5b2b20 100644
--- a/src/cfgparse.c
+++ b/src/cfgparse.c
@@ -1041,8 +1041,14 @@
 			goto out;
 		}
 
+		/* handle nicely the case where "udp@" is forced */
+		if (sk->ss_family == AF_CUST_UDP4)
+			sk->ss_family = AF_INET;
+		else if (sk->ss_family == AF_CUST_UDP6)
+			sk->ss_family = AF_INET6;
+
 		proto = protocol_by_family(sk->ss_family);
-		if (!proto || !proto->connect) {
+		if (!proto) {
 			ha_alert("parsing [%s:%d] : '%s %s' : connect() not supported for this address family.\n",
 				file, linenum, args[0], args[1]);
 			err_code |= ERR_ALERT | ERR_FATAL;