diff --git a/parts/net.lua b/parts/net.lua
index 4b99bdf4..1a8c8b32 100644
--- a/parts/net.lua
+++ b/parts/net.lua
@@ -650,6 +650,7 @@ function NET.wsCallBack.room_enter(body)
         end
     else
         local p=body.data
+        if NETPLY.map[p.playerId] then _playerLeaveRoom(p.playerId) end
         NETPLY.add{
             uid=p.playerId,
             group=p.group,