diff --git a/.github/workflows/publish-docker-images.yml b/.github/workflows/publish-docker-images.yml
index 70a7527d4..d48804eef 100644
--- a/.github/workflows/publish-docker-images.yml
+++ b/.github/workflows/publish-docker-images.yml
@@ -25,7 +25,7 @@ jobs:
           escaped_tag=$(printf "%q" ${{ github.ref_name }})
 
           if [[ $escaped_tag =~ ^v[0-9]+\.[0-9]+\.[0-9]+$ ]]; then
-            echo "stable=true" >> ${GITHUB_OUTPUT}
+            echo "stable=true" >> $GITHUB_OUTPUT
           else
             echo "stable=false" >> ${GITHUB_OUTPUT}
           fi