diff --git a/extensions/baidu/openclaw.plugin.json b/extensions/baidu/openclaw.plugin.json
index 8fc2d3314ca..14f6f432ee0 100644
--- a/extensions/baidu/openclaw.plugin.json
+++ b/extensions/baidu/openclaw.plugin.json
@@ -1,5 +1,8 @@
 {
   "id": "baidu",
+  "providerAuthEnvVars": {
+    "brave": ["BAIDU_SEARCH_API_KEY"]
+  },
   "uiHints": {
     "webSearch.apiKey": {
       "label": "Baidu Search API Key",