diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 2518520..e74c6fa 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -36,3 +36,9 @@ jobs:
 
       - name: Build
         run: yarn build
+
+      - name: Check size
+        if: ${{ github.event_name == 'pull_request' && github.base_ref == 'master'}}
+        uses: andresz1/size-limit-action@v1
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
diff --git a/.github/workflows/size.yml b/.github/workflows/size.yml
deleted file mode 100644
index f2027db..0000000
--- a/.github/workflows/size.yml
+++ /dev/null
@@ -1,15 +0,0 @@
-name: size
-on:
-  pull_request:
-    branches:
-      - master
-jobs:
-  size:
-    runs-on: ubuntu-latest
-    env:
-      CI_JOB_NUMBER: 1
-    steps:
-      - uses: actions/checkout@v1
-      - uses: andresz1/size-limit-action@v1
-        with:
-          github_token: ${{ secrets.GITHUB_TOKEN }}