diff --git a/core/.eslintignore b/core/.eslintignore
index a15282a..0bb8ca5 100644
--- a/core/.eslintignore
+++ b/core/.eslintignore
@@ -1,4 +1,4 @@
 assets/vendor/**/*
-modules/locale/tests/locale_test.js
+modules/locale/tests/locale_test.es6.js
 node_modules/**/*
 **/js_test_files/**/*
diff --git a/core/package.json b/core/package.json
index b168cb3..c39cf60 100644
--- a/core/package.json
+++ b/core/package.json
@@ -6,7 +6,7 @@
   "scripts": {
     "build:js": "node ./scripts/js/babel-es6-build.js",
     "watch:js": "node ./scripts/js/babel-es6-watch.js",
-    "lint:js": "eslint . || exit 0"
+    "lint:js": "eslint . --ext=.es6.js || exit 0"
   },
   "devDependencies": {
     "babel-core": "6.17.0",