diff --git a/.github/workflows/test-docs.yml b/.github/workflows/test-docs.yml
index 00e5309bfbe..f6bcd33eb1b 100644
--- a/.github/workflows/test-docs.yml
+++ b/.github/workflows/test-docs.yml
@@ -29,7 +29,8 @@ jobs:
 
       - name: Checkout Yosys
         uses: actions/checkout@v3
-
+        with:
+         submodules: true
       - name: Build yosys
         shell: bash
         run: |