diff --git a/django-stubs/core/cache/backends/base.pyi b/django-stubs/core/cache/backends/base.pyi
index 1e64f7863..42fe5efde 100644
--- a/django-stubs/core/cache/backends/base.pyi
+++ b/django-stubs/core/cache/backends/base.pyi
@@ -1,4 +1,4 @@
-from collections.abc import Callable, Iterable
+from collections.abc import Callable, Iterable, Iterator
 from typing import Any
 
 from django.core.exceptions import ImproperlyConfigured
@@ -65,3 +65,5 @@ class BaseCache:
     async def adecr_version(self, key: Any, delta: int = ..., version: int | None = ...) -> int: ...
     def close(self, **kwargs: Any) -> None: ...
     async def aclose(self, **kwargs: Any) -> None: ...
+
+def memcache_key_warnings(key: str) -> Iterator[str]: ...
diff --git a/scripts/stubtest/allowlist_todo.txt b/scripts/stubtest/allowlist_todo.txt
index da10df786..3413dfdbd 100644
--- a/scripts/stubtest/allowlist_todo.txt
+++ b/scripts/stubtest/allowlist_todo.txt
@@ -803,7 +803,6 @@ django.contrib.staticfiles.management.commands.collectstatic
 django.contrib.staticfiles.management.commands.findstatic.Command.handle_label
 django.contrib.staticfiles.storage
 django.core.cache.InvalidCacheKey
-django.core.cache.backends.base.memcache_key_warnings
 django.core.cache.backends.db.DatabaseCache.pickle_protocol
 django.core.cache.backends.filebased.FileBasedCache.pickle_protocol
 django.core.cache.backends.locmem.LocMemCache.pickle_protocol