diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index 9bcb76d4..f84fabcb 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -20,6 +20,7 @@ jobs:
         echo "TAG=$TAG" >> $GITHUB_ENV
         if git rev-parse $TAG >/dev/null 2>&1; then
             echo "::error::Tag already exists: $TAG"
+            exit 1
         else
             echo "TAG_EXISTS=false" >> $GITHUB_ENV
         fi