diff --git a/src/Microsoft.DotNet.PackageValidation.Tests/Microsoft.DotNet.PackageValidation.Tests.csproj b/src/Microsoft.DotNet.PackageValidation.Tests/Microsoft.DotNet.PackageValidation.Tests.csproj
index 874202d0036..f69b97f4a64 100644
--- a/src/Microsoft.DotNet.PackageValidation.Tests/Microsoft.DotNet.PackageValidation.Tests.csproj
+++ b/src/Microsoft.DotNet.PackageValidation.Tests/Microsoft.DotNet.PackageValidation.Tests.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp3.1</TargetFramework>
+    <TargetFrameworks>netcoreapp3.1;net472</TargetFrameworks>
     <IsPackable>false</IsPackable>
   </PropertyGroup>
 
diff --git a/src/Microsoft.DotNet.PackageValidation/Microsoft.DotNet.PackageValidation.csproj b/src/Microsoft.DotNet.PackageValidation/Microsoft.DotNet.PackageValidation.csproj
index 0ebe3ccb585..2f35e4aa96f 100644
--- a/src/Microsoft.DotNet.PackageValidation/Microsoft.DotNet.PackageValidation.csproj
+++ b/src/Microsoft.DotNet.PackageValidation/Microsoft.DotNet.PackageValidation.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp3.1</TargetFramework>
+    <TargetFrameworks>netcoreapp3.1;net472</TargetFrameworks>
     <ExcludeFromSourceBuild>false</ExcludeFromSourceBuild>
     <PackageType>MSBuildSdk</PackageType>
     <IncludeBuildOutput>false</IncludeBuildOutput>
@@ -15,6 +15,7 @@
     <PackageReference Include="NuGet.Frameworks" Version="$(NuGetVersion)" />
     <PackageReference Include="NuGet.Packaging" Version="$(NuGetVersion)" />
   </ItemGroup>
+
   <ItemGroup>
     <Compile Include="..\Common\Internal\BuildTask.cs" />
   </ItemGroup>
diff --git a/src/Microsoft.DotNet.PackageValidation/NupkgParser.cs b/src/Microsoft.DotNet.PackageValidation/NupkgParser.cs
index 19e2f0049c6..77d73bb0c69 100644
--- a/src/Microsoft.DotNet.PackageValidation/NupkgParser.cs
+++ b/src/Microsoft.DotNet.PackageValidation/NupkgParser.cs
@@ -42,18 +42,18 @@ public static PackageAsset ExtractAssetFromFile(string filePath)
             PackageAsset asset = null;
             if (filePath.StartsWith("ref"))
             {
-                var stringParts = filePath.Split(@"/");
+                var stringParts = filePath.Split('/');
                 asset = new PackageAsset(NuGetFramework.Parse(stringParts[1]), null, filePath, AssetType.RefAsset);
             }
             else if (filePath.StartsWith("lib"))
             {
-                var stringParts = filePath.Split(@"/");
+                var stringParts = filePath.Split('/');
                 asset = new PackageAsset(NuGetFramework.Parse(stringParts[1]), null, filePath, AssetType.LibAsset);
 
             }
             else if (filePath.StartsWith("runtimes"))
             {
-                var stringParts = filePath.Split(@"/");
+                var stringParts = filePath.Split('/');
                 asset = new PackageAsset(NuGetFramework.Parse(stringParts[3]), stringParts[1], filePath, AssetType.RuntimeAsset);
             }
 
diff --git a/src/Microsoft.DotNet.PackageValidation/build/Microsoft.DotNet.PackageValidation.props b/src/Microsoft.DotNet.PackageValidation/build/Microsoft.DotNet.PackageValidation.props
index 2ef430ca642..08703d1bd38 100644
--- a/src/Microsoft.DotNet.PackageValidation/build/Microsoft.DotNet.PackageValidation.props
+++ b/src/Microsoft.DotNet.PackageValidation/build/Microsoft.DotNet.PackageValidation.props
@@ -1,5 +1,6 @@
 <Project>
   <PropertyGroup>
-    <DotNetPackageValidationAssembly>$(MSBuildThisFileDirectory)\..\tools\net5.0\Microsoft.DotNet.PackageValidation.dll</DotNetPackageValidationAssembly>
+    <DotNetPackageValidationAssembly Condition="'$(MSBuildRuntimeType)' != 'Core'">$(MSBuildThisFileDirectory)..\tools\net472\Microsoft.DotNet.PackageValidation.dll</DotNetPackageValidationAssembly>
+    <DotNetPackageValidationAssembly Condition="'$(MSBuildRuntimeType)' == 'Core'">$(MSBuildThisFileDirectory)..\tools\netcoreapp3.1\Microsoft.DotNet.PackageValidation.dll</DotNetPackageValidationAssembly>
   </PropertyGroup>
 </Project>