diff --git a/backoff/_typing.py b/backoff/_typing.py
index 20446d4..3f61caa 100644
--- a/backoff/_typing.py
+++ b/backoff/_typing.py
@@ -38,7 +38,7 @@ class Details(_Details, total=False):
 ]
 _Jitterer = Callable[[float], float]
 _MaybeCallable = Union[T, Callable[[], T]]
-_MaybeLogger = Union[str, logging.Logger, None]
+_MaybeLogger = Union[str, logging.Logger, logging.LoggerAdapter, None]
 _MaybeSequence = Union[T, Sequence[T]]
 _Predicate = Callable[[T], bool]
 _WaitGenerator = Callable[..., Generator[float, None, None]]