diff --git a/telethon/extensions/html.py b/telethon/extensions/html.py
index ae45a763..0e2e8f33 100644
--- a/telethon/extensions/html.py
+++ b/telethon/extensions/html.py
@@ -1,11 +1,10 @@
 """
 Simple HTML -> Telegram entity parser.
 """
-import struct
 from collections import deque
 from html import escape
 from html.parser import HTMLParser
-from typing import Iterable, Optional, Tuple, List
+from typing import Iterable, Tuple, List
 
 from ..helpers import add_surrogate, del_surrogate, within_surrogate, strip_text
 from ..tl import TLObject