1 files changed, 3 insertions, 1 deletions

diff --git a/OpenSim/Region/PhysicsModules/POS/POSScene.cs b/OpenSim/Region/PhysicsModules/POS/POSScene.cs
index beaa177..f47d245 100644
--- a/OpenSim/Region/PhysicsModules/POS/POSScene.cs
+++ b/OpenSim/Region/PhysicsModules/POS/POSScene.cs
@@ -85,7 +85,9 @@ namespace OpenSim.Region.PhysicsModule.POS
             PhysicsSceneName = EngineType + "/" + scene.RegionInfo.RegionName;
 
             scene.RegisterModuleInterface<PhysicsScene>(this);
-            base.Initialise(scene.PhysicsRequestAsset, scene.Heightmap.GetFloatsSerialised(), (float)scene.RegionInfo.RegionSettings.WaterHeight);
+            base.Initialise(scene.PhysicsRequestAsset,
+                (scene.Heightmap != null ? scene.Heightmap.GetFloatsSerialised() : new float[Constants.RegionSize * Constants.RegionSize]),
+                (float)scene.RegionInfo.RegionSettings.WaterHeight);
 
         }