diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 6f4fd5d0..9f479c20 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -97,6 +97,7 @@ jobs:
       steps:
       - uses: actions/checkout@v3
       - run: |
+          python3 amalgamate.py
           cd plugins/macos/pocketpy
           mkdir -p output/macos
           xcodebuild clean build CODE_SIGN_IDENTITY="" CODE_SIGNING_REQUIRED=NO CODE_SIGNING_ALLOWED=NO