diff --git a/.gitea/workflows/base-build.yml b/.gitea/workflows/base-build.yml
index 0df49e4..b099c8f 100644
--- a/.gitea/workflows/base-build.yml
+++ b/.gitea/workflows/base-build.yml
@@ -64,7 +64,7 @@ jobs:
       - name: Check output folder permissions
         run: |
           ls -ld "${{ env.OUTPUT_DIR }}"
-          ls -l "${{ env.OUTPUT_DIR }}"/*
+          find "${{ env.OUTPUT_DIR }}" -type f -ls
 
       - name: Check output folder on host
         run: |
@@ -243,7 +243,13 @@ jobs:
           git clone "https://${{ secrets.GIT_USERNAME }}:${{ secrets.GIT_TOKEN }}@gitea.fithwum.tech/fithwum/debian-base.git" upload-repo
 
       - name: Copy checksum file into workspace
-        run: cp ../sha256sums.txt upload-repo/
+        run: |
+          if [[ -f ../sha256sums.txt ]]; then
+            cp ../sha256sums.txt upload-repo/
+          else
+            echo "[ERROR] sha256sums.txt missing!"
+            exit 1
+          fi
 
       - name: Generate build-info.json per version
         run: |