diff --git a/src/fsharp/FSharp.Build.UnitTests/FSharp.Build.UnitTests.fsproj b/src/fsharp/FSharp.Build.UnitTests/FSharp.Build.UnitTests.fsproj
index 930b11279c6..f81d227e8d6 100644
--- a/src/fsharp/FSharp.Build.UnitTests/FSharp.Build.UnitTests.fsproj
+++ b/src/fsharp/FSharp.Build.UnitTests/FSharp.Build.UnitTests.fsproj
@@ -66,9 +66,6 @@
   </ItemGroup>
   <ItemGroup>
     <Reference Include="mscorlib" />
-    <Reference Include="FSharp.Core">
-      <Private>false</Private>
-    </Reference>
     <Reference Include="System" />
     <Reference Include="System.Core" />
   </ItemGroup>