diff --git a/.forgejo/workflows/check.yml b/.forgejo/workflows/check.yml
index 2be95d7..a4fe6e2 100644
--- a/.forgejo/workflows/check.yml
+++ b/.forgejo/workflows/check.yml
@@ -22,7 +22,7 @@ jobs:
       - name: Calculate flake.lock hash
         id: flake-lock-hash
         run: |
-          echo "hash=$(md5sum flake.lock)" >> $GITHUB_OUTPUT     
+          echo "hash=$(md5sum flake.lock | awk '{print $1}')" >> $GITHUB_OUTPUT
       - name: Restore and cache Nix store
         uses: https://github.com/nix-community/cache-nix-action@v4
         with: