diff --git a/eng/common/post-build/publish-using-darc.ps1 b/eng/common/post-build/publish-using-darc.ps1
index 599a1172419..2427ca6b6ae 100644
--- a/eng/common/post-build/publish-using-darc.ps1
+++ b/eng/common/post-build/publish-using-darc.ps1
@@ -60,7 +60,7 @@ try {
   --id $buildId `
   --publishing-infra-version $PublishingInfraVersion `
   --default-channels `
-  --source-branch master `
+  --source-branch main `
   --azdev-pat $AzdoToken `
   --bar-uri $MaestroApiEndPoint `
   --password $MaestroToken `