diff --git a/SignList.xml b/SignList.xml
index 64fc7f1d..d5c28e4a 100644
--- a/SignList.xml
+++ b/SignList.xml
@@ -23,6 +23,7 @@
   <ItemGroup>
     <!-- <Skip Include="System.*.dll" /> -->
     <Skip Include="System.dll" />
+    <Skip Include="System.*.dll" />
     <Skip Include="mscorlib.dll" />
     <Skip Include="netstandard.dll" />
     <Skip Include="WindowsBase.dll" />