diff --git a/nuget/Microsoft.Windows.CppWinRT.targets b/nuget/Microsoft.Windows.CppWinRT.targets
index e0e2fe91a..7f27cd3c4 100644
--- a/nuget/Microsoft.Windows.CppWinRT.targets
+++ b/nuget/Microsoft.Windows.CppWinRT.targets
@@ -804,7 +804,8 @@ $(XamlMetaDataProviderPch)
Text="Please retarget to 10.0.17709.0 or later, or rename your PCH to 'pch.h'."/>
true
- $(_PCH)
+ $(_PCH)
+ .
-prefix