diff --git a/dev/dll/Microsoft.UI.Xaml.vcxproj b/dev/dll/Microsoft.UI.Xaml.vcxproj
index 14f4552630..346723142d 100644
--- a/dev/dll/Microsoft.UI.Xaml.vcxproj
+++ b/dev/dll/Microsoft.UI.Xaml.vcxproj
@@ -181,7 +181,6 @@
true
..\..\build\PrefastWarnings.ruleset
- true