diff --git a/stdlib/shlex.pyi b/stdlib/shlex.pyi
index 0eb89d33c..741f516dc 100644
--- a/stdlib/shlex.pyi
+++ b/stdlib/shlex.pyi
@@ -28,7 +28,7 @@ class shlex(Iterable[str]):
     punctuation_chars: str
     def __init__(
         self,
-        instream: Union[str, TextIO] = ...,
+        instream: Optional[Union[str, TextIO]] = ...,
         infile: Optional[str] = ...,
         posix: bool = ...,
         punctuation_chars: Union[bool, str] = ...,
@@ -36,10 +36,10 @@ class shlex(Iterable[str]):
     def get_token(self) -> str: ...
     def push_token(self, tok: str) -> None: ...
     def read_token(self) -> str: ...
-    def sourcehook(self, filename: str) -> Tuple[str, TextIO]: ...
+    def sourcehook(self, newfile: str) -> Tuple[str, TextIO]: ...
     # TODO argument types
     def push_source(self, newstream: Any, newfile: Any = ...) -> None: ...
     def pop_source(self) -> None: ...
-    def error_leader(self, infile: str = ..., lineno: int = ...) -> None: ...
+    def error_leader(self, infile: Optional[str] = ..., lineno: Optional[int] = ...) -> None: ...
     def __iter__(self: _SLT) -> _SLT: ...
     def __next__(self) -> str: ...
diff --git a/tests/stubtest_whitelists/py3_common.txt b/tests/stubtest_whitelists/py3_common.txt
index 42dabd8ef..005672a57 100644
--- a/tests/stubtest_whitelists/py3_common.txt
+++ b/tests/stubtest_whitelists/py3_common.txt
@@ -331,9 +331,6 @@ sched.Event.__doc__
 select.poll
 selectors.DevpollSelector
 selectors.KqueueSelector
-shlex.shlex.__init__
-shlex.shlex.error_leader
-shlex.shlex.sourcehook
 shutil.register_unpack_format
 signal.SIGEMT
 signal.SIGINFO