diff --git a/pyproject.toml b/pyproject.toml
index 86e5e895e..4adb50f21 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -217,7 +217,6 @@ disallow_any_generics = false
 module = [
     # tests/
 #    "tests.conftest",
-    "tests.test_addnodes",
     "tests.test_errors",
     "tests.test_events",
     "tests.test_highlighting",
diff --git a/tests/test_addnodes.py b/tests/test_addnodes.py
index f90953af0..a941a6fdd 100644
--- a/tests/test_addnodes.py
+++ b/tests/test_addnodes.py
@@ -2,13 +2,18 @@
 
 from __future__ import annotations
 
+from typing import TYPE_CHECKING
+
 import pytest
 
 from sphinx import addnodes
 
+if TYPE_CHECKING:
+    from collections.abc import Generator
+
 
 @pytest.fixture()
-def sig_elements() -> set[type[addnodes.desc_sig_element]]:
+def sig_elements() -> Generator[set[type[addnodes.desc_sig_element]], None, None]:
     """Fixture returning the current ``addnodes.SIG_ELEMENTS`` set."""
     original = addnodes.SIG_ELEMENTS.copy()  # safe copy of the current nodes
     yield {*addnodes.SIG_ELEMENTS}  # temporary value to use during tests