diff --git a/authd/providers/rdns.c b/authd/providers/rdns.c
index e5e1f6ddc..e4f2430e3 100644
--- a/authd/providers/rdns.c
+++ b/authd/providers/rdns.c
@@ -189,7 +189,7 @@ add_conf_dns_timeout(const char *key, int parc, const char **parv)
 
 struct auth_opts_handler rdns_options[] =
 {
-	{ "dns_timeout", 1, add_conf_dns_timeout },
+	{ "rdns_timeout", 1, add_conf_dns_timeout },
 	{ NULL, 0, NULL },
 };