diff --git a/tries/trie_bfs.py b/tries/trie_bfs.py
index 0a3f015..378b0c9 100644
--- a/tries/trie_bfs.py
+++ b/tries/trie_bfs.py
@@ -19,6 +19,7 @@ def level_orders(root):
 
     while queue:
         level = []
+        
         for _ in range(len(queue)):
                 node = queue.popleft()
                 level.append(node.val)