diff --git a/grammar.js b/grammar.cjs
similarity index 100%
rename from grammar.js
rename to grammar.cjs
diff --git a/package.json b/package.json
index 3b64fbd..4bb1c71 100644
--- a/package.json
+++ b/package.json
@@ -19,7 +19,7 @@
   "funding": "https://github.com/sponsors/EmranMR",
   "scripts": {
     "build": "tree-sitter generate",
-    "lint": "eslint grammar.js",
+    "lint": "eslint grammar.cjs",
     "test": "tree-sitter test",
     "test-examples": "script/parse-examples"
   },
@@ -47,4 +47,4 @@
       "folds": "queries/folds.scm"
     }
   ]
-}
+}
\ No newline at end of file