diff --git a/Service/Service.csproj b/Service/Service.csproj
index 9d63e495b..5392c9146 100644
--- a/Service/Service.csproj
+++ b/Service/Service.csproj
@@ -117,6 +117,7 @@
     <Reference Include="Microsoft.Bcl.AsyncInterfaces, Version=9.0.0.7, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51, processorArchitecture=MSIL">
       <HintPath>..\packages\Microsoft.Bcl.AsyncInterfaces.9.0.7\lib\net462\Microsoft.Bcl.AsyncInterfaces.dll</HintPath>
     </Reference>
+    <Reference Include="Microsoft.CSharp" />
     <Reference Include="Newtonsoft.Json, Version=13.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed, processorArchitecture=MSIL">
       <HintPath>..\packages\Newtonsoft.Json.13.0.3\lib\net45\Newtonsoft.Json.dll</HintPath>
     </Reference>