diff --git a/.azure/azure-ci-build-pipeline.yaml b/.azure/azure-ci-build-pipeline.yaml
index 4001b1c5..066c66b2 100644
--- a/.azure/azure-ci-build-pipeline.yaml
+++ b/.azure/azure-ci-build-pipeline.yaml
@@ -44,7 +44,7 @@ stages:
         pool:
           vmImage: ${{ item.img }}
 
-        condition: or( eq(variables['BuildReason'], 'PullRequest'), ${{ item.every_time }} )
+        condition: or( eq(variables['Build.Reason'], 'PullRequest'), ${{ item.every_time }} )
 
         steps:
           - task: UsePythonVersion@0