diff --git a/jjb/shell/publish-helm-repo.sh b/jjb/shell/publish-helm-repo.sh
index 75cb92c..f7e1ba7 100644
--- a/jjb/shell/publish-helm-repo.sh
+++ b/jjb/shell/publish-helm-repo.sh
@@ -48,7 +48,7 @@
 
   # Add changes and create commit
   git add -A
-  git commit -m "Changed by CORD Jenkins publish-helm-repo job: $BUILD_NUMBER, for project: $GERRIT_PROJECT, patchset: $GERRIT_CHANGE_NUMBER"
+  git commit -sm "Changed by CORD Jenkins publish-helm-repo job: $BUILD_NUMBER, for project: $GERRIT_PROJECT, patchset: $GERRIT_CHANGE_NUMBER"
 
   # create tag on new commit
   git tag "$NEW_VERSION"