diff --git a/OpenSim/Region/Environment/Scenes/SceneCommunicationService.cs b/OpenSim/Region/Environment/Scenes/SceneCommunicationService.cs
index 4823aa1103..6aa6de8f49 100644
--- a/OpenSim/Region/Environment/Scenes/SceneCommunicationService.cs
+++ b/OpenSim/Region/Environment/Scenes/SceneCommunicationService.cs
@@ -615,6 +615,10 @@ namespace OpenSim.Region.Environment.Scenes
 
                     if (destRegionUp)
                     {
+                        // Fixing a bug where teleporting while sitting results in the avatar ending up removed from
+                        // both regions
+                        if (avatar.ParentID != (uint)0)
+                            avatar.StandUp();
                         if(!avatar.ValidateAttachments())
                         {
                             avatar.ControllingClient.SendTeleportFailed("Inconsistent attachment state");