diff --git a/.github/workflows/size-limit.yml b/.github/workflows/size-limit.yml
index 63d14ff4b6..8f1704b659 100644
--- a/.github/workflows/size-limit.yml
+++ b/.github/workflows/size-limit.yml
@@ -11,4 +11,5 @@ jobs:
       - uses: actions/checkout@v1
       - uses: andresz1/size-limit-action@v1
         with:
+          skip_step: build # Done in the package.json script
           github_token: ${{ secrets.GITHUB_TOKEN }}
diff --git a/package.json b/package.json
index 8247b72b18..1d49f6e474 100644
--- a/package.json
+++ b/package.json
@@ -167,7 +167,7 @@
     {
       "path": "build/esm/index.js",
       "import": "{ Waku }",
-      "config": "./webpack.config.js"
+      "config": "./webpack.config.cjs"
     }
   ],
   "lint-staged": {