diff --git a/utils/publish/staging.sh b/utils/publish/staging.sh
index b7261a2..0c220cf 100755
--- a/utils/publish/staging.sh
+++ b/utils/publish/staging.sh
@@ -19,6 +19,7 @@
 # Restrict to pipeline triggered by pushes.
 if [ $CI_PIPELINE_SOURCE != "push" ]; then
     echo "This must be only ran from pushes."
+    exit 1
 fi
 
 # Build and push as staging.