diff --git a/ln.json.csproj b/ln.json.csproj
index 0eedf27..a837576 100644
--- a/ln.json.csproj
+++ b/ln.json.csproj
@@ -43,16 +43,24 @@
     <Compile Include="mapping\JSONArrayMapping.cs" />
     <Compile Include="mapping\JSONObjectMapping.cs" />
     <Compile Include="mapping\JSONEnumerableMapping.cs" />
-  </ItemGroup>
-  <ItemGroup>
-    <ProjectReference Include="ln.types\ln.types.csproj">
-      <Project>{8D9AB9A5-E513-4BA7-A450-534F6456BF28}</Project>
-      <Name>ln.types</Name>
-    </ProjectReference>
+    <Compile Include="mapping\JSONRPCCallMapping.cs" />
+    <Compile Include="mapping\JSONDateTimeMapping.cs" />
+    <Compile Include="mapping\JSONGuidMapping.cs" />
+    <Compile Include="mapping\JSONIPv4Mapping.cs" />
+    <Compile Include="mapping\JSONNetwork4Mapping.cs" />
+    <Compile Include="mapping\JSONTimeSpanMapping.cs" />
+    <Compile Include="mapping\JSONDateTimeOffsetMapping.cs" />
+    <Compile Include="mapping\JSONRPCResultMapping.cs" />
   </ItemGroup>
   <ItemGroup>
     <Folder Include="mapping\" />
   </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\ln.types\ln.types.csproj">
+      <Project>{8D9AB9A5-E513-4BA7-A450-534F6456BF28}</Project>
+      <Name>ln.types</Name>
+    </ProjectReference>
+  </ItemGroup>
   <Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
   <ProjectExtensions>
     <MonoDevelop>