diff --git a/src/Microsoft.Windows.CsWin32/Microsoft.Windows.CsWin32.nuspec b/src/Microsoft.Windows.CsWin32/Microsoft.Windows.CsWin32.nuspec
index 186b37d1..6890a769 100644
--- a/src/Microsoft.Windows.CsWin32/Microsoft.Windows.CsWin32.nuspec
+++ b/src/Microsoft.Windows.CsWin32/Microsoft.Windows.CsWin32.nuspec
@@ -50,7 +50,9 @@
     <file src="$BaseOutputPath$Microsoft.Bcl.AsyncInterfaces.dll" target="analyzers\cs\Microsoft.Bcl.AsyncInterfaces.dll" />
     <file src="$BaseOutputPath$System.Text.Json.dll" target="analyzers\cs\System.Text.Json.dll" />
     <file src="$BaseOutputPath$System.Text.Encodings.Web.dll" target="analyzers\cs\System.Text.Encodings.Web.dll" />
-    <file src="$CsWin32GeneratorBasePath$**" target="build\tools\" />
+    <file src="$CsWin32GeneratorBasePath$**" target="build\tools\" exclude="**\*.exe;**\MessagePack*.dll" />
+    <file src="$SignedOutputPath$MessagePack.dll" target="build\tools\" />
+    <file src="$SignedOutputPath$MessagePack.Annotations.dll" target="build\tools\" />
     <file src="readme.txt" target="readme.txt" />
     <file src="README.md" target="README.md" />
     <file src="..\..\NOTICE.txt" target="NOTICE.txt" />