diff --git a/.github/workflows/staging-deploy-pr.yml b/.github/workflows/staging-deploy-pr.yml
index 8831358026..65c7c7eec7 100644
--- a/.github/workflows/staging-deploy-pr.yml
+++ b/.github/workflows/staging-deploy-pr.yml
@@ -37,7 +37,7 @@ jobs:
   notify-of-failed-builds:
     if: >-
       ${{
-        env.PR_NUMBER != '0' &&
+        (github.event.workflow_run.pull_requests[0].number || '0') != '0' &&
         github.event.workflow_run.conclusion == 'failure' &&
         (github.repository == 'github/docs-internal' || github.repository == 'github/docs')
       }}
@@ -57,7 +57,7 @@ jobs:
   check-pr-before-prepare:
     if: >-
       ${{
-        env.PR_NUMBER != '0' &&
+        (github.event.workflow_run.pull_requests[0].number || '0') != '0' &&
         github.event.workflow_run.conclusion == 'success' &&
         (github.repository == 'github/docs-internal' || github.repository == 'github/docs')
       }}