diff --git a/stdlib/2/ConfigParser.pyi b/stdlib/2/ConfigParser.pyi
index 0dcc2a7e9..67b034025 100644
--- a/stdlib/2/ConfigParser.pyi
+++ b/stdlib/2/ConfigParser.pyi
@@ -1,4 +1,4 @@
-from typing import Any, Tuple, IO
+from typing import Any, IO, Sequence, Tuple, Union
 
 __all__ = ...  # type: list[str]
 DEFAULTSECT = ...  # type: str
@@ -66,7 +66,7 @@ class RawConfigParser:
     def add_section(self, section: str) -> None: ...
     def has_section(self, section: str) -> bool: ...
     def options(self, section: str) -> list[str]: ...
-    def read(self, filenames: str) -> list[str]: ...
+    def read(self, filenames: Union[str, Sequence[str]]) -> list[str]: ...
     def readfp(self, fp: IO[str], filename: str = ...) -> None: ...
     def get(self, section: str, option: str) -> str: ...
     def items(self, section: str) -> list[Tuple[Any, Any]]: ...