diff --git a/build/SharedFx.targets b/build/SharedFx.targets
index 0a3006047a..6ec447b623 100644
--- a/build/SharedFx.targets
+++ b/build/SharedFx.targets
@@ -71,7 +71,7 @@
     <MSBuild
       Projects="@(_MetapackageBuilderProject)"
       Targets="_BuildMetapackage"
-      BuildInParallel="$(BuildInParallel)" />
+      BuildInParallel="false" />
   </Target>
 
   <Target Name="DefineSharedFxPrerequisites">