diff --git a/OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs b/OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs
index 38fa26abae..2d4218da39 100644
--- a/OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs
+++ b/OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs
@@ -1500,6 +1500,7 @@ namespace OpenSim.Region.Framework.Scenes
                 dupe.IsAttachment = true;
 
             dupe.AbsolutePosition = new Vector3(AbsolutePosition.X, AbsolutePosition.Y, AbsolutePosition.Z);
+            dupe.m_sittingAvatars = new List<UUID>();
 
             if (!userExposed)
             {