diff --git a/azure-pipelines.yml b/azure-pipelines.yml
index 0f9ce5987..458b5c194 100644
--- a/azure-pipelines.yml
+++ b/azure-pipelines.yml
@@ -15,6 +15,7 @@ variables:
   buildArtifactName: output
   testResultFolderName: testResults
   testArtifactName: testResults
+  defaultBranch: master
 
 stages:
   - stage: Build