diff --git a/ClientServerLib/ClientServerLib/ClientServerLib.csproj b/ClientServerLib/ClientServerLib/ClientServerLib.csproj
index f0453376..d5bd8b7e 100644
--- a/ClientServerLib/ClientServerLib/ClientServerLib.csproj
+++ b/ClientServerLib/ClientServerLib/ClientServerLib.csproj
@@ -39,7 +39,6 @@
     <Reference Include="System.Core" />
     <Reference Include="System.Windows.Forms" />
     <Reference Include="System.Xml.Linq" />
-    <Reference Include="System.Data.DataSetExtensions" />
     <Reference Include="Microsoft.CSharp" />
     <Reference Include="System.Data" />
     <Reference Include="System.Xml" />