diff --git a/src/SourceBuild/content/repo-projects/Directory.Build.targets b/src/SourceBuild/content/repo-projects/Directory.Build.targets
index 95e5a308e993..3b65afe73967 100644
--- a/src/SourceBuild/content/repo-projects/Directory.Build.targets
+++ b/src/SourceBuild/content/repo-projects/Directory.Build.targets
@@ -300,7 +300,7 @@
 
     <!-- Get the previously-built-source-built package information from the manifest from that build. -->
     <ItemGroup>
-      <_PrebuiltSourceBuiltAssetManifests Include="$(PrebuiltSourceBuiltPackagesPath)VerticalManifest.xml" />
+      <_PrebuiltSourceBuiltAssetManifests Include="$(PrebuiltSourceBuiltPackagesPath)*.xml" />
     </ItemGroup>
 
     <GetKnownArtifactsFromAssetManifests AssetManifests="@(_PrebuiltSourceBuiltAssetManifests)" Condition="Exists(@(_PrebuiltSourceBuiltAssetManifests))">