diff --git a/.github/workflows/pr_from_upstream.yml b/.github/workflows/pr_from_upstream.yml
index d585dfe..c80cfe2 100644
--- a/.github/workflows/pr_from_upstream.yml
+++ b/.github/workflows/pr_from_upstream.yml
@@ -66,10 +66,8 @@ jobs:
 
           git diff
 
-          echo "GIT_DIFF<<EOF" >> $GITHUB_ENV
-          git diff >> $GITHUB_ENV
-          echo "EOF" >> $GITHUB_ENV
-      
+          echo "GIT_DIFF=$git diff" >> $GITHUB_ENV
+
       - name: Push changes to new branch
         if: success()
         run: |