diff --git a/ephemeral/startup/action.yml b/ephemeral/startup/action.yml
index abf433b..b2b439e 100644
--- a/ephemeral/startup/action.yml
+++ b/ephemeral/startup/action.yml
@@ -59,7 +59,7 @@ runs:
       shell: bash
       run: |
         prId=$(<pr-id.txt)
-        repoName=$GITHUB_REPOSITORY | xargs
+        repoName=$($GITHUB_REPOSITORY | xargs)
         repoNameCleaned=$(echo "$repoName" | tr -c '[:alnum:]' '-')
         previewName=preview-$repoNameCleaned-$prId
         echo "previewName=$previewName" >> $GITHUB_ENV