diff --git a/OpenSim/Framework/IClientAPI.cs b/OpenSim/Framework/IClientAPI.cs
index 9bb326cead..fa2ab0b372 100644
--- a/OpenSim/Framework/IClientAPI.cs
+++ b/OpenSim/Framework/IClientAPI.cs
@@ -869,7 +869,7 @@ namespace OpenSim.Framework
         void CrossRegion(ulong newRegionHandle, LLVector3 pos, LLVector3 lookAt, IPEndPoint newRegionExternalEndPoint,
                          string capsURL);
 
-        void SendMapBlock(List<MapBlockData> mapBlocks);
+        void SendMapBlock(List<MapBlockData> mapBlocks, uint flag);
         void SendLocalTeleport(LLVector3 position, LLVector3 lookAt, uint flags);
 
         void SendRegionTeleport(ulong regionHandle, byte simAccess, IPEndPoint regionExternalEndPoint, uint locationID,
diff --git a/OpenSim/Region/ClientStack/LindenUDP/LLClientView.cs b/OpenSim/Region/ClientStack/LindenUDP/LLClientView.cs
index bf435edd6b..eb2a4825dd 100644
--- a/OpenSim/Region/ClientStack/LindenUDP/LLClientView.cs
+++ b/OpenSim/Region/ClientStack/LindenUDP/LLClientView.cs
@@ -1211,7 +1211,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP
             OutPacket(newSimPack, ThrottleOutPacketType.Unknown);
         }
 
-        internal void SendMapBlockSplit(List<MapBlockData> mapBlocks)
+        internal void SendMapBlockSplit(List<MapBlockData> mapBlocks, uint flag)
         {
             MapBlockReplyPacket mapReply = (MapBlockReplyPacket)PacketPool.Instance.GetPacket(PacketType.MapBlockReply);
             // TODO: don't create new blocks if recycling an old packet
@@ -1220,7 +1220,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP
 
             mapReply.AgentData.AgentID = AgentId;
             mapReply.Data = new MapBlockReplyPacket.DataBlock[mapBlocks2.Length];
-            mapReply.AgentData.Flags = 0;
+            mapReply.AgentData.Flags = flag;
 
             for (int i = 0; i < mapBlocks2.Length; i++)
             {
@@ -1238,7 +1238,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP
             OutPacket(mapReply, ThrottleOutPacketType.Land);
         }
 
-        public void SendMapBlock(List<MapBlockData> mapBlocks)
+        public void SendMapBlock(List<MapBlockData> mapBlocks, uint flag)
         {
            
             MapBlockData[] mapBlocks2 = mapBlocks.ToArray();
@@ -1254,7 +1254,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP
                 sendingBlocks.Add(mapBlocks2[i]);
                 if (((i + 1) == mapBlocks2.Length) || ((i % maxsend) == 0))
                 {
-                    SendMapBlockSplit(sendingBlocks);
+                    SendMapBlockSplit(sendingBlocks, flag);
                     sendingBlocks = new List<MapBlockData>();
                 }
             }
diff --git a/OpenSim/Region/Environment/Modules/World/NPC/NPCAvatar.cs b/OpenSim/Region/Environment/Modules/World/NPC/NPCAvatar.cs
index 50403b9b18..f4d2848d31 100644
--- a/OpenSim/Region/Environment/Modules/World/NPC/NPCAvatar.cs
+++ b/OpenSim/Region/Environment/Modules/World/NPC/NPCAvatar.cs
@@ -452,7 +452,7 @@ namespace OpenSim.Region.Environment.Modules.World.NPC
         {
         }
 
-        public virtual void SendMapBlock(List<MapBlockData> mapBlocks)
+        public virtual void SendMapBlock(List<MapBlockData> mapBlocks, uint flag)
         {
         }
 
diff --git a/OpenSim/Region/Environment/Modules/World/WorldMap/WorldMapModule.cs b/OpenSim/Region/Environment/Modules/World/WorldMap/WorldMapModule.cs
index dda9c1cc07..2a7af87fa9 100644
--- a/OpenSim/Region/Environment/Modules/World/WorldMap/WorldMapModule.cs
+++ b/OpenSim/Region/Environment/Modules/World/WorldMap/WorldMapModule.cs
@@ -155,7 +155,7 @@ namespace OpenSim.Region.Environment.Modules.World.WorldMap
                         List<MapBlockData> mapBlocks;
 
                         mapBlocks = cachedMapBlocks;
-                        avatarPresence.ControllingClient.SendMapBlock(mapBlocks);
+                        avatarPresence.ControllingClient.SendMapBlock(mapBlocks, 0);
                     }
                     else
                     {
@@ -167,7 +167,7 @@ namespace OpenSim.Region.Environment.Modules.World.WorldMap
                     List<MapBlockData> mapBlocks;
 
                     mapBlocks = m_scene.SceneGridService.RequestNeighbourMapBlocks((int)m_scene.RegionInfo.RegionLocX - 8, (int)m_scene.RegionInfo.RegionLocY - 8, (int)m_scene.RegionInfo.RegionLocX + 8, (int)m_scene.RegionInfo.RegionLocY + 8);
-                    avatarPresence.ControllingClient.SendMapBlock(mapBlocks);
+                    avatarPresence.ControllingClient.SendMapBlock(mapBlocks,0);
                     
                     lock (cachedMapBlocks)
                         cachedMapBlocks = mapBlocks;
@@ -245,7 +245,7 @@ namespace OpenSim.Region.Environment.Modules.World.WorldMap
         {
             List<MapBlockData> mapBlocks;
             mapBlocks = m_scene.SceneGridService.RequestNeighbourMapBlocks(minX - 4, minY - 4, minX + 4, minY + 4);
-            remoteClient.SendMapBlock(mapBlocks);
+            remoteClient.SendMapBlock(mapBlocks, flag);
         }
 
         public Hashtable OnHTTPGetMapImage(Hashtable keysvals)
diff --git a/OpenSim/Region/Environment/Scenes/SceneCommunicationService.cs b/OpenSim/Region/Environment/Scenes/SceneCommunicationService.cs
index e841ad4731..6e14577167 100644
--- a/OpenSim/Region/Environment/Scenes/SceneCommunicationService.cs
+++ b/OpenSim/Region/Environment/Scenes/SceneCommunicationService.cs
@@ -542,7 +542,7 @@ namespace OpenSim.Region.Environment.Scenes
         {
             List<MapBlockData> mapBlocks;
             mapBlocks = m_commsProvider.GridService.RequestNeighbourMapBlocks(minX - 4, minY - 4, minX + 4, minY + 4);
-            remoteClient.SendMapBlock(mapBlocks);
+            remoteClient.SendMapBlock(mapBlocks, 0);
         }
 
         /// <summary>
diff --git a/OpenSim/Region/Examples/SimpleModule/MyNpcCharacter.cs b/OpenSim/Region/Examples/SimpleModule/MyNpcCharacter.cs
index c6fd64c0a2..a097f23941 100644
--- a/OpenSim/Region/Examples/SimpleModule/MyNpcCharacter.cs
+++ b/OpenSim/Region/Examples/SimpleModule/MyNpcCharacter.cs
@@ -366,7 +366,7 @@ namespace OpenSim.Region.Examples.SimpleModule
         {
         }
 
-        public virtual void SendMapBlock(List<MapBlockData> mapBlocks)
+        public virtual void SendMapBlock(List<MapBlockData> mapBlocks, uint flag)
         {
         }