diff --git a/.github/workflows/package-osx.yaml b/.github/workflows/package-osx.yaml
index a72d5c93..e77edf04 100644
--- a/.github/workflows/package-osx.yaml
+++ b/.github/workflows/package-osx.yaml
@@ -7,6 +7,8 @@ jobs:
     runs-on: macos-latest
     steps:
       - uses: actions/checkout@v2
+        with:
+          submodules: true
       - name: Set up JDK 14.0.1
         uses: actions/setup-java@v1
         with: