diff --git a/src/fsc/fsc.targets b/src/fsc/fsc.targets
index 01079442eac602e1c36f91a903dff6df55a5d4fc..cb83e18d11d01527a57eaa90b3949d035fb57f1a 100644
--- a/src/fsc/fsc.targets
+++ b/src/fsc/fsc.targets
@@ -41,7 +41,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <ProjectReference Include="$(MSBuildThisFileDirectory)../FSharp.Core/FSharp.Core.fsproj" />
+    <ProjectReference Include="$(MSBuildThisFileDirectory)../FSharp.Core/FSharp.Core.fsproj" AdditionalProperties="TargetFramework=netstandard2.0" />
     <ProjectReference Include="$(MSBuildThisFileDirectory)../FSharp.Build/FSharp.Build.fsproj" />
     <ProjectReference Include="$(MSBuildThisFileDirectory)../Compiler/FSharp.Compiler.Service.fsproj" />
     <ProjectReference Include="$(MSBuildThisFileDirectory)../FSharp.DependencyManager.Nuget/FSharp.DependencyManager.Nuget.fsproj" />
diff --git a/src/fsi/fsi.targets b/src/fsi/fsi.targets
index e553c55cf1c0ce771383484ca6b0dfa35717862c..071b137e69015a5404ddab7aa0ea0a109ba016df 100644
--- a/src/fsi/fsi.targets
+++ b/src/fsi/fsi.targets
@@ -46,7 +46,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <ProjectReference Include="$(MSBuildThisFileDirectory)..\FSharp.Core\FSharp.Core.fsproj" />
+    <ProjectReference Include="$(MSBuildThisFileDirectory)..\FSharp.Core\FSharp.Core.fsproj" AdditionalProperties="TargetFramework=netstandard2.0" />
     <ProjectReference Include="$(MSBuildThisFileDirectory)..\Compiler\FSharp.Compiler.Service.fsproj" />
     <ProjectReference Include="$(MSBuildThisFileDirectory)..\FSharp.Compiler.Interactive.Settings\FSharp.Compiler.Interactive.Settings.fsproj" />
   </ItemGroup>