diff --git a/entrypoint.sh b/entrypoint.sh
index 3d3daea..e581845 100755
--- a/entrypoint.sh
+++ b/entrypoint.sh
@@ -49,6 +49,7 @@ elif [ -n "${GITHUB_TOKEN}" ]; then
     if [ -n "${PUBLISH_REPO}" ]; then
         if [ "${GITHUB_REPOSITORY}" !=  "${PUBLISH_REPO}" ]; then
             echo "can not use GITHUB_TOKEN to deploy to a different repository"
+            exit 1
         fi
     fi