diff --git a/package.json b/package.json
index 9e765e6f6f23..e867ef847f8c 100644
--- a/package.json
+++ b/package.json
@@ -40,7 +40,7 @@
     "test": "yarn test-node && yarn test-electron && yarn test-lint-intl && yarn test-eslint",
     "test-electron": "node ts/scripts/test-electron.js",
     "test-release": "node ts/scripts/test-release.js",
-    "test-node": "electron-mocha --timeout 10000 --file test/setup-test-node.js --recursive test/modules ts/test-node ts/test-both",
+    "test-node": "cross-env LANG=en-us electron-mocha --timeout 10000 --file test/setup-test-node.js --recursive test/modules ts/test-node ts/test-both",
     "test-mock": "mocha ts/test-mock/**/*_test.js",
     "test-eslint": "mocha .eslint/rules/**/*.test.js --ignore-leaks",
     "test-node-coverage": "nyc --reporter=lcov --reporter=text mocha --recursive test/modules ts/test-node ts/test-both",