diff --git a/stdlib/2and3/optparse.pyi b/stdlib/2and3/optparse.pyi
index 52ca10428..a03f5dc03 100644
--- a/stdlib/2and3/optparse.pyi
+++ b/stdlib/2and3/optparse.pyi
@@ -1,6 +1,6 @@
 # Generated by pytype, with only minor tweaks. Might be incomplete.
 import sys
-from typing import Any, Callable, Dict, IO, Iterable, List, Mapping, Optional, Sequence, Tuple, Union
+from typing import Any, AnyStr, Callable, Dict, IO, Iterable, List, Mapping, Optional, Sequence, Tuple, Union
 
 # See https://groups.google.com/forum/#!topic/python-ideas/gA1gdj3RZ5g
 if sys.version_info >= (3,):
@@ -216,7 +216,7 @@ class OptionParser(OptionContainer):
     def get_prog_name(self) -> _Text: ...
     def get_usage(self) -> _Text: ...
     def get_version(self) -> _Text: ...
-    def parse_args(self, args: Optional[Sequence[_Text]] = ..., values: Optional[Values] = ...) -> Tuple[Values, List[_Text]]: ...
+    def parse_args(self, args: Optional[Sequence[AnyStr]] = ..., values: Optional[Values] = ...) -> Tuple[Values, List[AnyStr]]: ...
     def print_usage(self, file: Optional[IO[str]] = ...) -> None: ...
     def print_help(self, file: Optional[IO[str]] = ...) -> None: ...
     def print_version(self, file: Optional[IO[str]] = ...) -> None: ...