1 files changed, 2 insertions, 2 deletions

diff --git a/OpenSim/Region/Physics/BulletSPlugin/BSTerrainManager.cs b/OpenSim/Region/Physics/BulletSPlugin/BSTerrainManager.cs
index 4285073..47d7199 100755
--- a/OpenSim/Region/Physics/BulletSPlugin/BSTerrainManager.cs
+++ b/OpenSim/Region/Physics/BulletSPlugin/BSTerrainManager.cs
@@ -403,8 +403,8 @@ public class BSTerrainManager
         {
             float regionX = tX - offsetX;
             float regionY = tY - offsetY;
-            if (regionX > mapInfo.sizeX) regionX = 0;
-            if (regionY > mapInfo.sizeY) regionY = 0;
+            if (regionX >= mapInfo.sizeX || regionX < 0f) regionX = 0;
+            if (regionY >= mapInfo.sizeY || regionY < 0f) regionY = 0;
             int mapIndex = (int)regionY * (int)mapInfo.sizeY + (int)regionX;
             ret = mapInfo.heightMap[mapIndex];
             m_terrainModified = false;