diff --git a/Lib/typing.py b/Lib/typing.py
index 301a47745d8..a51452bfec3 100644
--- a/Lib/typing.py
+++ b/Lib/typing.py
@@ -99,7 +99,7 @@ __all__ = [
     'NamedTuple',  # Not really a type.
     'TypedDict',  # Not really a type.
     'Generator',
- 
+
     # Other concrete types.
     'BinaryIO',
     'IO',