diff --git a/data_structures/binary_tree/avl_tree.py b/data_structures/binary_tree/avl_tree.py
index 03a8d5cb0..0cfaa2ebd 100644
--- a/data_structures/binary_tree/avl_tree.py
+++ b/data_structures/binary_tree/avl_tree.py
@@ -358,4 +358,4 @@ if __name__ == "__main__":
     random.shuffle(lst)
     for i in lst:
         t.del_node(i)
-        print(str(t))
\ No newline at end of file
+        print(str(t))