diff --git a/test/Microsoft.AspNetCore.Hosting.TestSites/Microsoft.AspNetCore.Hosting.TestSites.csproj b/test/Microsoft.AspNetCore.Hosting.TestSites/Microsoft.AspNetCore.Hosting.TestSites.csproj
index a446e603d5..af06ec8755 100644
--- a/test/Microsoft.AspNetCore.Hosting.TestSites/Microsoft.AspNetCore.Hosting.TestSites.csproj
+++ b/test/Microsoft.AspNetCore.Hosting.TestSites/Microsoft.AspNetCore.Hosting.TestSites.csproj
@@ -3,7 +3,8 @@
   <Import Project="..\..\build\common.props" />
 
   <PropertyGroup>
-    <TargetFrameworks>net451;netcoreapp1.1</TargetFrameworks>
+    <TargetFrameworks>net452;netcoreapp1.1</TargetFrameworks>
+    <TargetFrameworks Condition=" '$(OS)' != 'Windows_NT' ">netcoreapp1.1</TargetFrameworks>
     <!-- TODO remove when https://github.com/dotnet/sdk/issues/396 is resolved -->
     <RuntimeIdentifier Condition=" '$(TargetFramework)' != 'netcoreapp1.1' ">win7-x64</RuntimeIdentifier>
     <OutputType>Exe</OutputType>
diff --git a/test/Microsoft.AspNetCore.Hosting.Tests/Microsoft.AspNetCore.Hosting.Tests.csproj b/test/Microsoft.AspNetCore.Hosting.Tests/Microsoft.AspNetCore.Hosting.Tests.csproj
index 2742d30815..9c461148b0 100644
--- a/test/Microsoft.AspNetCore.Hosting.Tests/Microsoft.AspNetCore.Hosting.Tests.csproj
+++ b/test/Microsoft.AspNetCore.Hosting.Tests/Microsoft.AspNetCore.Hosting.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>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/test/Microsoft.AspNetCore.TestHost.Tests/Microsoft.AspNetCore.TestHost.Tests.csproj b/test/Microsoft.AspNetCore.TestHost.Tests/Microsoft.AspNetCore.TestHost.Tests.csproj
index c35143f324..63513545cf 100644
--- a/test/Microsoft.AspNetCore.TestHost.Tests/Microsoft.AspNetCore.TestHost.Tests.csproj
+++ b/test/Microsoft.AspNetCore.TestHost.Tests/Microsoft.AspNetCore.TestHost.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>
   </PropertyGroup>
 
   <ItemGroup>