diff --git a/backend/src/State/RoomsState.hs b/backend/src/State/RoomsState.hs
index 7310878..1649aeb 100644
--- a/backend/src/State/RoomsState.hs
+++ b/backend/src/State/RoomsState.hs
@@ -64,7 +64,7 @@ roomStateDiffInOpenRooms newData = do
 
   liftIO $ putStrLn $ pack $ "Current rooms: " ++ show current
   liftIO $ putStrLn $ pack $ "New rooms: " ++ show newData
-  let newRooms = filter roomNotEmpty $ filter (\newRoom -> isNothing $ find (sameName newRoom) current) newData
+  let newRooms = filter roomNotEmpty $ filter (\newRoom -> isNothing $ find (sameName newRoom) (filter roomNotEmpty current)) newData
   let oldRooms = filter roomNotEmpty $ filter (\oldRoom -> isNothing $ find (sameName oldRoom) newData) current
 
   return (newRooms, oldRooms)