diff --git a/test/Microsoft.AspNetCore.Html.Abstractions.Test/Microsoft.AspNetCore.Html.Abstractions.Test.csproj b/test/Microsoft.AspNetCore.Html.Abstractions.Test/Microsoft.AspNetCore.Html.Abstractions.Test.csproj
index 160e0ab478..1fe9581c45 100755
--- a/test/Microsoft.AspNetCore.Html.Abstractions.Test/Microsoft.AspNetCore.Html.Abstractions.Test.csproj
+++ b/test/Microsoft.AspNetCore.Html.Abstractions.Test/Microsoft.AspNetCore.Html.Abstractions.Test.csproj
@@ -3,7 +3,8 @@
   <Import Project="..\..\build\common.props" />
 
   <PropertyGroup>
-    <TargetFrameworks>netcoreapp1.1;net451</TargetFrameworks>
+    <TargetFrameworks>netcoreapp1.1;net452</TargetFrameworks>
+    <TargetFrameworks Condition=" '$(OS)' != 'Windows_NT' ">netcoreapp1.1</TargetFrameworks>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/test/Microsoft.Extensions.WebEncoders.Tests/Microsoft.Extensions.WebEncoders.Tests.csproj b/test/Microsoft.Extensions.WebEncoders.Tests/Microsoft.Extensions.WebEncoders.Tests.csproj
index 9ad4edbc0b..77b807e9dd 100755
--- a/test/Microsoft.Extensions.WebEncoders.Tests/Microsoft.Extensions.WebEncoders.Tests.csproj
+++ b/test/Microsoft.Extensions.WebEncoders.Tests/Microsoft.Extensions.WebEncoders.Tests.csproj
@@ -3,7 +3,8 @@
   <Import Project="..\..\build\common.props" />
 
   <PropertyGroup>
-    <TargetFrameworks>netcoreapp1.1;net451</TargetFrameworks>
+    <TargetFrameworks>netcoreapp1.1;net452</TargetFrameworks>
+    <TargetFrameworks Condition=" '$(OS)' != 'Windows_NT' ">netcoreapp1.1</TargetFrameworks>
     <PackageTargetFallback Condition=" '$(TargetFramework)' == 'netcoreapp1.1' ">$(PackageTargetFallback);dnxcore50;portable-net451+win8</PackageTargetFallback>
   </PropertyGroup>