diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index 385c6d8..56f262f 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -9,6 +9,8 @@ jobs:
     steps:
     - name: Clone repository
       uses: actions/checkout@master
+      with:
+       submodules: 'recursive'
 
     - name: Setup Go
       uses: actions/setup-go@master