diff --git a/DynamORM.Tests/DynamORM.Tests.Mono.csproj b/DynamORM.Tests/DynamORM.Tests.Mono.csproj
index d987260..28fd64d 100644
--- a/DynamORM.Tests/DynamORM.Tests.Mono.csproj
+++ b/DynamORM.Tests/DynamORM.Tests.Mono.csproj
@@ -37,7 +37,7 @@
     <Reference Include="System.Data.DataSetExtensions" />
     <Reference Include="System.Data" />
     <Reference Include="System.Xml" />
-    <Reference Include="nunit.framework, Version=2.5.10.0, Culture=neutral, PublicKeyToken=96d09a1eb7f44a77">
+    <Reference Include="nunit.framework">
       <Private>False</Private>
       <Package>nunit</Package>
     </Reference>
@@ -88,4 +88,4 @@
   <Target Name="AfterBuild">
   </Target>
   -->
-</Project>
\ No newline at end of file
+</Project>
diff --git a/DynamORM/Builders/Implementation/DynamicSelectQueryBuilder.cs b/DynamORM/Builders/Implementation/DynamicSelectQueryBuilder.cs
index e7e4da6..74a994d 100644
--- a/DynamORM/Builders/Implementation/DynamicSelectQueryBuilder.cs
+++ b/DynamORM/Builders/Implementation/DynamicSelectQueryBuilder.cs
@@ -210,7 +210,7 @@ namespace DynamORM.Builders.Implementation
                                 argex.InnerException.NullOr(a => a, argex));
                         }
 
-                        yield return mapper.Create(val);
+                        yield return mapper.Create(val) as T;
                     }
             }
         }
@@ -1235,4 +1235,4 @@ namespace DynamORM.Builders.Implementation
 
         #endregion Helpers
     }
-}
\ No newline at end of file
+}