diff --git a/src/cfgparse-listen.c b/src/cfgparse-listen.c
index 09b172724..507e07173 100644
--- a/src/cfgparse-listen.c
+++ b/src/cfgparse-listen.c
@@ -880,11 +880,10 @@ int cfg_parse_listen(const char *file, int linenum, char **args, int kwm)
 					goto out;
 				}
 
-				if (*args[cur_arg + 1] != '.' || !strchr(args[cur_arg + 1] + 1, '.')) {
-					/* rfc2109, 4.3.2 Rejecting Cookies */
-					ha_warning("parsing [%s:%d]: domain '%s' contains no embedded"
-						   " dots nor does not start with a dot."
-						   " RFC forbids it, this configuration may not work properly.\n",
+				if (!strchr(args[cur_arg + 1], '.')) {
+					/* rfc6265, 5.2.3 The Domain Attribute */
+					ha_warning("parsing [%s:%d]: domain '%s' contains no embedded dot,"
+						   " this configuration may not work properly (see RFC6265#5.2.3).\n",
 						   file, linenum, args[cur_arg + 1]);
 					err_code |= ERR_WARN;
 				}