diff --git a/.github/workflows/checksums.yml b/.github/workflows/checksums.yml
index a749a40..566585c 100644
--- a/.github/workflows/checksums.yml
+++ b/.github/workflows/checksums.yml
@@ -13,7 +13,7 @@ jobs:
       - name: Generate checksums
         run: |
           set -e
-          git clone ${{ github.repository }} /tmp/repo
+          git clone ${{ github.server_url }}/${{ github.repository }}.git /tmp/repo
           cd /tmp/repo
           git checkout ${{ github.ref }}
           git lfs install --local