diff --git a/OpenSim/Region/CoreModules/World/Terrain/DefaultEffects/ChannelDigger.cs b/OpenSim/Region/CoreModules/World/Terrain/Effects/ChannelDigger.cs
similarity index 98%
rename from OpenSim/Region/CoreModules/World/Terrain/DefaultEffects/ChannelDigger.cs
rename to OpenSim/Region/CoreModules/World/Terrain/Effects/ChannelDigger.cs
index e23be595f9..36917e9e38 100644
--- a/OpenSim/Region/CoreModules/World/Terrain/DefaultEffects/ChannelDigger.cs
+++ b/OpenSim/Region/CoreModules/World/Terrain/Effects/ChannelDigger.cs
@@ -30,7 +30,7 @@ using OpenSim.Region.CoreModules.World.Terrain;
 using OpenSim.Region.CoreModules.World.Terrain.FloodBrushes;
 using OpenSim.Region.Framework.Interfaces;
 
-namespace OpenSim.Region.Modules.Terrain.Extensions.DefaultEffects.Effects
+namespace OpenSim.Region.CoreModules.World.Terrain.Effects
 {
     public class ChannelDigger : ITerrainEffect
     {
diff --git a/prebuild.xml b/prebuild.xml
index 491e822ee9..5f55461268 100644
--- a/prebuild.xml
+++ b/prebuild.xml
@@ -1366,35 +1366,11 @@
         <Match pattern="*.addin.xml" path="Resources" buildAction="EmbeddedResource" recurse="true"/>
         <Match pattern="*.cs" recurse="true">
           <Exclude name="Tests" pattern="Tests" />
-          <Exclude name="TerrainDefaultEffects" pattern="World/Terrain/DefaultEffects" />
         </Match>
         <Match pattern="*.addin.xml" path="Resources" buildAction="EmbeddedResource" recurse="true"/>
       </Files>
     </Project>
 
-    <Project frameworkVersion="v3_5" name="OpenSim.Region.CoreModules.World.Terrain.DefaultEffects" path="OpenSim/Region/CoreModules/World/Terrain/DefaultEffects" type="Library">
-      <Configuration name="Debug">
-        <Options>
-          <OutputPath>../../../../../../bin/Terrain/</OutputPath>
-        </Options>
-      </Configuration>
-      <Configuration name="Release">
-        <Options>
-          <OutputPath>../../../../../../bin/Terrain/</OutputPath>
-        </Options>
-      </Configuration>
-
-      <ReferencePath>../../../../../../bin/</ReferencePath>
-      <Reference name="System"/>
-      <Reference name="OpenSim.Framework"/>
-      <Reference name="OpenSim.Region.Framework"/>
-      <Reference name="OpenSim.Region.CoreModules"/>
-      <Files>
-        <Match pattern="*.cs" recurse="true"/>
-      </Files>
-    </Project>
-
-
     <Project frameworkVersion="v3_5" name="OpenSim.Region.OptionalModules" path="OpenSim/Region/OptionalModules" type="Library">
       <Configuration name="Debug">
         <Options>