1 files changed, 2 insertions, 3 deletions
diff --git a/sphinx/writers/html.py b/sphinx/writers/html.py
index e74c0334f..508e28c22 100644
--- a/sphinx/writers/html.py
+++ b/sphinx/writers/html.py
@@ -13,7 +13,7 @@ import os
 import posixpath
 import warnings
 from typing import Any, Iterable, Tuple
-from typing import cast
+from typing import TYPE_CHECKING, cast
 
 from docutils import nodes
 from docutils.nodes import Element, Node, Text
@@ -27,8 +27,7 @@ from sphinx.util import logging
 from sphinx.util.docutils import SphinxTranslator
 from sphinx.util.images import get_image_size
 
-if False:
-    # For type annotation
+if TYPE_CHECKING:
     from sphinx.builders.html import StandaloneHTMLBuilder