diff --git a/.github/workflows/comment-PR.yml b/.github/workflows/comment-PR.yml
index ced0082..40e3725 100644
--- a/.github/workflows/comment-PR.yml
+++ b/.github/workflows/comment-PR.yml
@@ -12,4 +12,4 @@ jobs:
         uses: thollander/actions-comment-pull-request@v2
         with:
           message: |
-            Preview the PR at https://raynamharrisgithubio--$pr_number.org.readthedocs.build/en/$pr_number/
+            Preview the PR at https://raynamharrisgithubio--${{ github.event.number }}.org.readthedocs.build/en/${{ github.event.number }}/