diff --git a/.github/workflows/user_project_ci.yml b/.github/workflows/user_project_ci.yml
index 0fb3ab6..6094329 100644
--- a/.github/workflows/user_project_ci.yml
+++ b/.github/workflows/user_project_ci.yml
@@ -12,6 +12,8 @@
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
+        with:
+          submodules: recursive
 
       - name: Set up QEMU
         uses: docker/setup-qemu-action@v1
@@ -49,6 +51,8 @@
     needs: [pdk]
     steps:
       - uses: actions/checkout@v2
+        with:
+          submodules: recursive
 
       - name: Set up QEMU
         uses: docker/setup-qemu-action@v1
@@ -139,6 +143,8 @@
     needs: [pdk]
     steps:
       - uses: actions/checkout@v2
+        with:
+          submodules: recursive
 
       - name: Set up QEMU
         uses: docker/setup-qemu-action@v1