diff --git a/OpenSim/Region/Physics/BulletSPlugin/BSPrim.cs b/OpenSim/Region/Physics/BulletSPlugin/BSPrim.cs
index d5b999d839..4685b48f20 100644
--- a/OpenSim/Region/Physics/BulletSPlugin/BSPrim.cs
+++ b/OpenSim/Region/Physics/BulletSPlugin/BSPrim.cs
@@ -41,7 +41,7 @@ namespace OpenSim.Region.Physics.BulletSPlugin
     [Serializable]
 public class BSPrim : BSPhysObject
 {
-    private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
+    protected static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
     private static readonly string LogHeader = "[BULLETS PRIM]";
 
     // _size is what the user passed. Scale is what we pass to the physics engine with the mesh.
@@ -1555,36 +1555,6 @@ public class BSPrim : BSPhysObject
         object ret = null;
         switch (pFunct)
         {
-            case BSScene.PhysFunctGetLinksetType:
-            {
-                BSPrimLinkable myHandle = this as BSPrimLinkable;
-                if (myHandle != null)
-                {
-                    ret = (object)myHandle.LinksetType;
-                }
-                m_log.DebugFormat("{0} Extension.physGetLinksetType, type={1}", LogHeader, ret);
-                break;
-            }
-            case BSScene.PhysFunctSetLinksetType:
-            {
-                if (pParams.Length > 0)
-                {
-                    BSLinkset.LinksetImplementation linksetType = (BSLinkset.LinksetImplementation)pParams[0];
-                    BSPrimLinkable myHandle = this as BSPrimLinkable;
-                    if (myHandle != null && myHandle.Linkset.IsRoot(myHandle))
-                    {
-                        PhysScene.TaintedObject("BSPrim.PhysFunctSetLinksetType", delegate()
-                        {
-                            // Cause the linkset type to change
-                            m_log.DebugFormat("{0} Extension.physSetLinksetType, oldType={1}, newType={2}",
-                                                LogHeader, myHandle.Linkset.LinksetImpl, linksetType);
-                            myHandle.ConvertLinkset(linksetType);
-                        });
-                    }
-                    ret = (object)(int)linksetType;
-                }
-                break;
-            }
             default:
                 ret = base.Extension(pFunct, pParams);
                 break;
diff --git a/OpenSim/Region/Physics/BulletSPlugin/BSPrimLinkable.cs b/OpenSim/Region/Physics/BulletSPlugin/BSPrimLinkable.cs
index 38d1f88053..fc639ad97f 100755
--- a/OpenSim/Region/Physics/BulletSPlugin/BSPrimLinkable.cs
+++ b/OpenSim/Region/Physics/BulletSPlugin/BSPrimLinkable.cs
@@ -41,6 +41,8 @@ public class BSPrimLinkable : BSPrimDisplaced
     //    operations necessary for keeping the linkset created and, additionally, this
     //    calls the linkset implementation for its creation and management.
 
+    private static readonly string LogHeader = "[BULLETS PRIMLINKABLE]";
+
     // This adds the overrides for link() and delink() so the prim is linkable.
 
     public BSLinkset Linkset { get; set; }
@@ -279,5 +281,44 @@ public class BSPrimLinkable : BSPrimDisplaced
         }
         return ret;
     }
+
+    #region Extension
+    public override object Extension(string pFunct, params object[] pParams)
+    {
+        object ret = null;
+        switch (pFunct)
+        {
+            case BSScene.PhysFunctGetLinksetType:
+            {
+                ret = (object)LinksetType;
+                m_log.DebugFormat("{0} Extension.physGetLinksetType, type={1}", LogHeader, ret);
+                break;
+            }
+            case BSScene.PhysFunctSetLinksetType:
+            {
+                if (pParams.Length > 0)
+                {
+                    BSLinkset.LinksetImplementation linksetType = (BSLinkset.LinksetImplementation)pParams[0];
+                    if (Linkset.IsRoot(this))
+                    {
+                        PhysScene.TaintedObject("BSPrim.PhysFunctSetLinksetType", delegate()
+                        {
+                            // Cause the linkset type to change
+                            m_log.DebugFormat("{0} Extension.physSetLinksetType, oldType={1}, newType={2}",
+                                                LogHeader, Linkset.LinksetImpl, linksetType);
+                            ConvertLinkset(linksetType);
+                        });
+                    }
+                    ret = (object)(int)linksetType;
+                }
+                break;
+            }
+            default:
+                ret = base.Extension(pFunct, pParams);
+                break;
+        }
+        return ret;
+    }
+    #endregion  // Extension
 }
 }