diff --git a/src/cfgparse.c b/src/cfgparse.c
index c588b466e..aae2efeda 100644
--- a/src/cfgparse.c
+++ b/src/cfgparse.c
@@ -2644,7 +2644,8 @@ int cfg_parse_listen(const char *file, int linenum, char **args, int kwm)
 		rule->flags = flags;
 		LIST_INIT(&rule->list);
 		LIST_ADDQ(&curproxy->redirect_rules, &rule->list);
-		warnif_rule_after_use_backend(curproxy, file, linenum, args[0]);
+		err_code |= warnif_rule_after_use_backend(curproxy, file, linenum, args[0]);
+		err_code |= warnif_cond_requires_resp(cond, file, linenum);
 	}
 	else if (!strcmp(args[0], "use_backend")) {
 		struct switching_rule *rule;