diff --git a/OpenSim/Region/Physics/Manager/IMesher.cs b/OpenSim/Region/Physics/Manager/IMesher.cs
index d7ab20b59b..d0e3996e5a 100644
--- a/OpenSim/Region/Physics/Manager/IMesher.cs
+++ b/OpenSim/Region/Physics/Manager/IMesher.cs
@@ -68,10 +68,12 @@ namespace OpenSim.Region.Physics.Manager
         public ulong hashA;
         [FieldOffset(8)]
         public ulong hashB;
+        [FieldOffset(16)]
+        public ulong hashC;
 
         public override string ToString()
         {
-            return uuid.ToString();
+            return uuid.ToString() + "-" + hashC.ToString() ;
         }
     }