diff --git a/.github/workflows/update-pull-request.yml b/.github/workflows/update-pull-request.yml
index 2b28cf2..dd8233d 100644
--- a/.github/workflows/update-pull-request.yml
+++ b/.github/workflows/update-pull-request.yml
@@ -24,7 +24,7 @@ jobs:
     - name: Compile new pull request description
       run: |
         echo 'PULL_REQUEST_NOTES<<EOF' >> $GITHUB_ENV
-        echo "$(python .github/workflows/scripts/compile-release-notes.py LAST_PULL_REQUEST '${{ github.event.pull_request.body }}')" >> $GITHUB_ENV
+        echo "$(python .github/workflows/scripts/compile-release-notes.py LAST_RELEASE '${{ github.event.pull_request.body }}')" >> $GITHUB_ENV
         echo 'EOF' >> $GITHUB_ENV
     - name: Update pull request body
       uses: riskledger/update-pr-description@v2