diff --git a/web_poet/mixins.py b/web_poet/mixins.py
index 54ae4f0e..df2cc70d 100644
--- a/web_poet/mixins.py
+++ b/web_poet/mixins.py
@@ -8,7 +8,7 @@
 from w3lib.html import get_base_url
 
 if TYPE_CHECKING:
-    from web_poet.page_inputs.url import RequestUrl, ResponseUrl
+    from web_poet.page_inputs.url import RequestUrl, ResponseUrl  # pragma: nocover
 
 
 class SelectorShortcutsMixin: