diff --git a/src/ap/acs.c b/src/ap/acs.c
index 60b75800d..3e0155c7a 100644
--- a/src/ap/acs.c
+++ b/src/ap/acs.c
@@ -284,6 +284,7 @@ static void acs_fail(struct hostapd_iface *iface)
 {
 	wpa_printf(MSG_ERROR, "ACS: Failed to start");
 	acs_cleanup(iface);
+	hostapd_disable_iface(iface);
 }