diff --git a/tasmota/settings.ino b/tasmota/settings.ino
index 18b8017ee..3cd6ceb49 100644
--- a/tasmota/settings.ino
+++ b/tasmota/settings.ino
@@ -1243,11 +1243,11 @@ void SettingsDelta(void)
       Settings.ex_serial_config = TS_SERIAL_8N1;
     }
     if (Settings.version < 0x07010204) {
-    //   if (Settings.flag3.ex_cors_enabled == 1) {
-    //     strlcpy(Settings.ex_cors_domain, CORS_ENABLED_ALL, sizeof(Settings.ex_cors_domain));
-    //   } else {
-    //     Settings.ex_cors_domain[0] = 0;
-    //   }
+       if (Settings.flag3.mqtt_buttons == 1) {
+         strlcpy(Settings.ex_cors_domain, CORS_ENABLED_ALL, sizeof(Settings.ex_cors_domain));
+       } else {
+         Settings.ex_cors_domain[0] = 0;
+       }
     }
     if (Settings.version < 0x07010205) {
       Settings.seriallog_level = Settings.ex_seriallog_level;  // 09E -> 452