diff --git a/nanoFramework.System.Threading/nanoFramework.System.Threading.nfproj b/nanoFramework.System.Threading/nanoFramework.System.Threading.nfproj
index 573273f..70bc552 100644
--- a/nanoFramework.System.Threading/nanoFramework.System.Threading.nfproj
+++ b/nanoFramework.System.Threading/nanoFramework.System.Threading.nfproj
@@ -49,11 +49,6 @@
       <InProject>false</InProject>
     </NFMDP_PE_ExcludeClassByName>
   </ItemGroup>
-  <ItemGroup>
-    <NFMDP_PE_LoadHints Include="..\packages\nanoFramework.CoreLibrary.1.10.5\lib\mscorlib.dll">
-      <InProject>false</InProject>
-    </NFMDP_PE_LoadHints>
-  </ItemGroup>
   <Import Project="$(NanoFrameworkProjectSystemPath)NFProjectSystem.props" Condition="Exists('$(NanoFrameworkProjectSystemPath)NFProjectSystem.props')" />
   <ItemGroup>
     <Compile Include="Properties\AssemblyInfo.cs" />
@@ -94,4 +89,4 @@
   <Import Project="..\packages\Microsoft.Build.Tasks.Git.1.0.0\build\Microsoft.Build.Tasks.Git.targets" Condition="Exists('..\packages\Microsoft.Build.Tasks.Git.1.0.0\build\Microsoft.Build.Tasks.Git.targets')" />
   <Import Project="..\packages\Microsoft.SourceLink.Common.1.0.0\build\Microsoft.SourceLink.Common.targets" Condition="Exists('..\packages\Microsoft.SourceLink.Common.1.0.0\build\Microsoft.SourceLink.Common.targets')" />
   <Import Project="..\packages\Microsoft.SourceLink.GitHub.1.0.0\build\Microsoft.SourceLink.GitHub.targets" Condition="Exists('..\packages\Microsoft.SourceLink.GitHub.1.0.0\build\Microsoft.SourceLink.GitHub.targets')" />
-</Project>
\ No newline at end of file
+</Project>