diff --git a/appengine/storage/standard/package.json b/appengine/storage/standard/package.json
index 78fc22996d..ab974919f7 100644
--- a/appengine/storage/standard/package.json
+++ b/appengine/storage/standard/package.json
@@ -3,7 +3,7 @@
   "description": "Node.js Google Cloud Storage sample for Google App Engine",
   "scripts": {
     "start": "node app.js",
-    "test": "mocha system-test/*.test.js --timeout=30000"
+    "test": "mocha system-test/*.test.js --exit --timeout=30000"
   },
   "engines": {
     "node": ">=8.0.0"