diff --git a/src/FSharp/FSharp-2017.fsproj b/src/FSharp/FSharp-2017.fsproj
index 4f37f720..719b01a7 100644
--- a/src/FSharp/FSharp-2017.fsproj
+++ b/src/FSharp/FSharp-2017.fsproj
@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <TargetFrameworks>net45;netstandard2.0</TargetFrameworks>
+    <TargetFrameworks>net45;netstandard1.6</TargetFrameworks>
     <GenerateAssemblyInfo>false</GenerateAssemblyInfo>
     <AssemblyName>MathNet.Numerics.FSharp</AssemblyName>
     <RootNamespace>MathNet.Numerics</RootNamespace>
@@ -14,7 +14,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <ProjectReference Include="..\Numerics\Numerics.csproj" />
+    <ProjectReference Include="..\Numerics\Numerics-2017.csproj" />
   </ItemGroup>
   <ItemGroup>
     <Compile Include="AssemblyInfo.fs" />