diff --git a/prebuild.xml b/prebuild.xml
index 0d7a7ec11e..047b66d5fd 100644
--- a/prebuild.xml
+++ b/prebuild.xml
@@ -1722,7 +1722,7 @@
     </Project>
 
 
-<Project frameworkVersion="v3_5" name="OpenSim.Region.CoreModules" path="OpenSim/Region/CoreModules" type="Library">
+<Project frameworkVersion="v3_5" name="OpenSim.Region.RegionCombinerModule" path="OpenSim/Region/RegionCombinerModule" type="Library">
       <Configuration name="Debug">
         <Options>
           <OutputPath>../../../bin/</OutputPath>
@@ -1747,6 +1747,7 @@
       <Reference name="OpenSim.Framework.Console"/>
       <Reference name="OpenSim.Region.Physics.Manager"/>
       <Reference name="OpenSim.Framework.Communications"/>
+      <Reference name="OpenSim.Region.CoreModules" />
       <Reference name="Nini.dll" />
       <Reference name="log4net.dll"/>