diff --git a/test/Spring/Spring.Services.Tests/Spring.Services.Tests.2005.csproj b/test/Spring/Spring.Services.Tests/Spring.Services.Tests.2005.csproj
index 8d240805..ccaefaa8 100644
--- a/test/Spring/Spring.Services.Tests/Spring.Services.Tests.2005.csproj
+++ b/test/Spring/Spring.Services.Tests/Spring.Services.Tests.2005.csproj
@@ -86,6 +86,7 @@
     </Reference>
     <Reference Include="System.EnterpriseServices" />
     <Reference Include="System.Runtime.Remoting" />
+    <Reference Include="System.ServiceModel, Version=3.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089, processorArchitecture=MSIL" />
     <Reference Include="System.Web.Services" />
     <Reference Include="System.Xml">
       <Name>System.XML</Name>