diff --git a/.github/workflows/test-pr.yml b/.github/workflows/test-pr.yml
index b581175d..b699d406 100644
--- a/.github/workflows/test-pr.yml
+++ b/.github/workflows/test-pr.yml
@@ -66,7 +66,7 @@ jobs:
       - name: Set PR source branch as env variable
         if: github.event_name == 'issue_comment'
         run: |
-          PR_SOURCE_BRANCH=$(echo "${{ steps.get-pr.outputs.data }}" | jq -r '.head.ref')
+          PR_SOURCE_BRANCH=$(echo '${{ steps.get-pr.outputs.data }}' | jq -r '.head.ref')
           echo "BRANCH=$PR_SOURCE_BRANCH" >> $GITHUB_ENV
 
       - name: Set PR Branch as bash env