diff --git a/src/package/sign/sign.proj b/src/package/sign/sign.proj
index 9ecfd73a91..43e1f8d838 100644
--- a/src/package/sign/sign.proj
+++ b/src/package/sign/sign.proj
@@ -302,6 +302,10 @@
     <!-- Sign Microsoft.TestPlatform.TestHost -->
     <ItemGroup>
       <TestHostCoreAssembliesToSign Include="$(ArtifactsBaseDirectory)Microsoft.TestPlatform.TestHost\netcoreapp2.1\testhost.dll" />
+      <TestHostCoreAssembliesToSign Include="$(ArtifactsBaseDirectory)Microsoft.TestPlatform.TestHost\netcoreapp2.1\win7-x64\testhost.exe" />
+      <TestHostCoreAssembliesToSign Include="$(ArtifactsBaseDirectory)Microsoft.TestPlatform.TestHost\netcoreapp2.1\win7-x64\testhost.dll" />
+      <TestHostCoreAssembliesToSign Include="$(ArtifactsBaseDirectory)Microsoft.TestPlatform.TestHost\netcoreapp2.1\win7-x86\testhost.x86.exe" />
+      <TestHostCoreAssembliesToSign Include="$(ArtifactsBaseDirectory)Microsoft.TestPlatform.TestHost\netcoreapp2.1\win7-x86\testhost.x86.dll" />
       <TestHostCoreAssembliesToSign Include="$(ArtifactsBaseDirectory)Microsoft.TestPlatform.TestHost\netcoreapp2.1\Microsoft.TestPlatform.CommunicationUtilities.dll" />
       <TestHostCoreAssembliesToSign Include="$(ArtifactsBaseDirectory)Microsoft.TestPlatform.TestHost\netcoreapp2.1\Microsoft.TestPlatform.CrossPlatEngine.dll" />
       <TestHostCoreAssembliesToSign Include="$(ArtifactsBaseDirectory)Microsoft.TestPlatform.TestHost\netcoreapp2.1\Microsoft.TestPlatform.PlatformAbstractions.dll" />