diff --git a/pyproject.toml b/pyproject.toml
index c68e7d3a0..b31ae439c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -324,7 +324,6 @@ module = [
     "sphinx.ext.autodoc.mock",
     "sphinx.ext.autodoc.importer",
     "sphinx.ext.autodoc.preserve_defaults",
-    "sphinx.ext.autodoc.type_comment",
     "sphinx.ext.autosummary",
     "sphinx.ext.autosummary.generate",
     "sphinx.ext.doctest",
diff --git a/sphinx/ext/autodoc/type_comment.py b/sphinx/ext/autodoc/type_comment.py
index f3137d496..e16d5d190 100644
--- a/sphinx/ext/autodoc/type_comment.py
+++ b/sphinx/ext/autodoc/type_comment.py
@@ -88,14 +88,19 @@ def get_type_comment(obj: Any, bound_method: bool = False) -> Signature | None:
             # subject is placed inside class or block.  To read its docstring,
             # this adds if-block before the declaration.
             module = ast.parse('if True:\n' + source, type_comments=True)
-            subject = cast(ast.FunctionDef, module.body[0].body[0])  # type: ignore
+            subject = cast(
+                ast.FunctionDef, module.body[0].body[0],  # type: ignore[attr-defined]
+            )
         else:
             module = ast.parse(source, type_comments=True)
             subject = cast(ast.FunctionDef, module.body[0])
 
-        if getattr(subject, "type_comment", None):
-            function = ast.parse(subject.type_comment, mode='func_type', type_comments=True)
-            return signature_from_ast(subject, bound_method, function)  # type: ignore
+        type_comment = getattr(subject, "type_comment", None)
+        if type_comment:
+            function = ast.parse(type_comment, mode='func_type', type_comments=True)
+            return signature_from_ast(
+                subject, bound_method, function,  # type: ignore[arg-type]
+            )
         else:
             return None
     except (OSError, TypeError):  # failed to load source code