diff --git a/.github/workflows/pr_build.yml b/.github/workflows/pr_build.yml
index b4f985ffa..16c75f1c0 100644
--- a/.github/workflows/pr_build.yml
+++ b/.github/workflows/pr_build.yml
@@ -132,9 +132,9 @@ jobs:
       - uses: actions/checkout@v4
       - name: Check PR title
         env:
-          PR_TITLE: ${{ github.event.pull_request_title }}
+          PR_TITLE: ${{ github.event.pull_request.title }}
         run: |
-          echo ${{ github.event.pull_request_title }}
+          echo ${{ github.event.pull_request.title }}
           echo "PR title = $PR_TITLE"
           if ! echo $PR_TITLE | grep -Eq '^(\w+)(\(.+\))?: .+$'; then
             echo "PR title does not follow conventional commit style."