diff --git a/.vsts/builds/ci-official.yml b/.vsts/builds/ci-official.yml
index f7fe2f4ff0..bde7d16b48 100644
--- a/.vsts/builds/ci-official.yml
+++ b/.vsts/builds/ci-official.yml
@@ -8,7 +8,7 @@ phases:
         BuildConfiguration: Release
     # see https://github.com/dotnet/core-eng/issues/4053 - MSI's cannot build from the NTAuthority\NetworkService account
     demands:
-    - agent.os -eq 'DDVSOSWINAGE086'
+    - agent.name -eq 'DDVSOSWINAGE086'
   variables:
     CI: true
     DOTNET_SKIP_FIRST_TIME_EXPERIENCE: true