diff --git a/OpenSim/Region/RegionCombinerModule/RegionCombinerModule.cs b/OpenSim/Region/RegionCombinerModule/RegionCombinerModule.cs
index 09da97a527..36d49faad8 100644
--- a/OpenSim/Region/RegionCombinerModule/RegionCombinerModule.cs
+++ b/OpenSim/Region/RegionCombinerModule/RegionCombinerModule.cs
@@ -84,6 +84,8 @@ namespace OpenSim.Region.RegionCombinerModule
 
         public void RemoveRegion(Scene scene)
         {
+            lock (m_startingScenes)
+                m_startingScenes.Remove(scene.RegionInfo.originRegionID);
         }
 
         public void RegionLoaded(Scene scene)