diff --git a/pkg/Microsoft.Private.CoreFx.UAP/Microsoft.Private.CoreFx.UAP.pkgproj b/pkg/Microsoft.Private.CoreFx.UAP/Microsoft.Private.CoreFx.UAP.pkgproj
index b15f7bf8f9a1..b73f031f4e1a 100644
--- a/pkg/Microsoft.Private.CoreFx.UAP/Microsoft.Private.CoreFx.UAP.pkgproj
+++ b/pkg/Microsoft.Private.CoreFx.UAP/Microsoft.Private.CoreFx.UAP.pkgproj
@@ -30,6 +30,7 @@
     <!-- Exclude shims from the closure verification -->
     <ExcludeFromClosure Include="mscorlib" />
     <ExcludeFromClosure Include="System" />
+    <ExcludeFromClosure Include="System.ComponentModel.Composition" />
     <ExcludeFromClosure Include="System.Configuration" />
     <ExcludeFromClosure Include="System.Core" />
     <ExcludeFromClosure Include="System.Data" />