diff --git a/packages/uni-uts-v1/lib/ext-api/default-parameters.json b/packages/uni-uts-v1/lib/ext-api/default-parameters.json
index 3237a10c268393dbbb7c52f6953048eb3d42fd54..74587c0b77c90e56000782056995750d2a73f093 100644
--- a/packages/uni-uts-v1/lib/ext-api/default-parameters.json
+++ b/packages/uni-uts-v1/lib/ext-api/default-parameters.json
@@ -12,6 +12,11 @@
       "null"
     ]
   },
+  "uni-scanCode": {
+    "scanCode": [
+      "null"
+    ]
+  },
   "uni-route": {
     "navigateBack": [
       "null"