diff --git a/.github/workflows/snapshot-on-push-master.yml b/.github/workflows/snapshot-on-push-master.yml
index 76ab85db0..1428c9626 100644
--- a/.github/workflows/snapshot-on-push-master.yml
+++ b/.github/workflows/snapshot-on-push-master.yml
@@ -100,6 +100,7 @@ jobs:
         uses: actions/checkout@v2
         with:
           repository: cc65/doc
+          token: ${{ github.token }}
           path: doc.git
       - name: Update the online documents.
         run: |