diff --git a/package.json b/package.json
index b121b8f..bc89cad 100644
--- a/package.json
+++ b/package.json
@@ -6,8 +6,9 @@
   "dependencies": {
     "web-ext": "^7.11.0"
   },
+  "type": "module",
   "scripts": {
-    "test": "echo \"Error: no test specified\" && exit 1",
+    "test": "node validate_addon.js",
     "build:firefox": "web-ext build --source-dir firefox --overwrite-dest --ignore-files \"*.zip\" --artifacts-dir firefox/web-ext-artifacts",
     "run:firefox": "web-ext run --source-dir firefox --overwrite-dest --ignore-files \"*.zip\" --artifacts-dir firefox/web-ext-artifacts",
     "sign:firefox": "web-ext sign --source-dir firefox --overwrite-dest --ignore-files \"*.zip\" --artifacts-dir firefox/web-ext-artifacts",