diff --git a/spec/package.json b/spec/package.json
index 5abf89f57..d49ed68f6 100644
--- a/spec/package.json
+++ b/spec/package.json
@@ -21,6 +21,7 @@
   },
   "standard": {
     "env": {
+      "browser": true,
       "mocha": true,
       "jquery": true,
       "serviceworker": true