diff --git a/.github/workflows/manual.yml b/.github/workflows/manual.yml
index 6ccf39ba8..66819ded0 100644
--- a/.github/workflows/manual.yml
+++ b/.github/workflows/manual.yml
@@ -4,6 +4,7 @@ jobs:
   mll:
     runs-on: 'ubuntu-latest'
     steps:
+    - uses: actions/checkout@v2
     - name: 'Install Prerequisites'
       run: |
         sudo apt install wget make gawk gcc bc bison flex xorriso libelf-dev libssl-dev