diff --git a/assets/clash/clash.yaml b/assets/clash/clash.yaml
index 0a9019e..c4f2dbf 100644
--- a/assets/clash/clash.yaml
+++ b/assets/clash/clash.yaml
@@ -53,12 +53,9 @@ dns:
 proxy-providers:
   sub:
     type: http
-    url: https://${DOMAIN}/${SUB_PATH}/${SUB_ID}
+    url: https://${DOMAIN}/${SUB_PATH}/${SUB_ID}?provider=1
     path: ./proxy_providers/base64.yml
     interval: 3600
-    header:
-      X-Proxy-Provider:
-        - "true"
     health-check:
       enable: true
       url: https://www.gstatic.com/generate_204
diff --git a/x-ui-latest.sh b/x-ui-latest.sh
index 8120e66..21c0994 100644
--- a/x-ui-latest.sh
+++ b/x-ui-latest.sh
@@ -417,9 +417,9 @@ map \$http_user_agent \$is_clash_ua {
     ~*(clash|clashx|clashn|mihomo|stash|surfboard)  1;
     default                                          0;
 }
-# Serve clash.yaml only when: Clash UA AND no X-Proxy-Provider header
-# (proxy-provider refresh requests carry X-Proxy-Provider: true and must get the real sub)
-map "\$is_clash_ua:\$http_x_proxy_provider" \$serve_clash_yaml {
+# Serve clash.yaml only when: Clash UA AND no ?provider=1 query param
+# (proxy-provider refresh requests add ?provider=1 and must get the real sub)
+map "\$is_clash_ua:\$arg_provider" \$serve_clash_yaml {
     "1:"    1;
     default 0;
 }