diff --git a/package.json b/package.json
index b2aed54..732514d 100644
--- a/package.json
+++ b/package.json
@@ -5,7 +5,7 @@
   "private": true,
   "scripts": {
     "presite": "cd functions && npm install",
-    "start": "cross-env MOCK=none PORT=1888 umi dev",
+    "start": "cross-env PORT=1888 umi dev",
     "start:no-mock": "cross-env MOCK=none PORT=1888 umi dev",
     "start:mock": "cross-env APP_TYPE=site PORT=1888 umi dev",
     "build": "umi build",