diff --git a/.gitea/workflows/generate-iso.yaml b/.gitea/workflows/generate-iso.yaml
index 0e94453..e835b35 100644
--- a/.gitea/workflows/generate-iso.yaml
+++ b/.gitea/workflows/generate-iso.yaml
@@ -104,6 +104,7 @@ jobs:
 
       - name: Starting CISS.debian.live.builder. This may take a while ...
         run: |
+          chmod 0700 ciss_live_builder.sh && chown root:root ciss_live_builder.sh
           timestamp=$(date -u +"%Y_%m_%d_%H_%M_Z")
           ### Change "--autobuild=" to the specific kernel version you need: 6.12.22+bpo-amd64.
           ./ciss_live_builder.sh \