diff --git a/stdlib/3/io.pyi b/stdlib/3/io.pyi
index f904e976a101..f03a9a8740fe 100644
--- a/stdlib/3/io.pyi
+++ b/stdlib/3/io.pyi
@@ -34,12 +34,14 @@ class IOBase:
     def flush(self) -> None: ...
     def isatty(self) -> bool: ...
     def readable(self) -> bool: ...
+    read: Callable[..., Any]
     def readlines(self, __hint: int = ...) -> List[bytes]: ...
     def seek(self, __offset: int, __whence: int = ...) -> int: ...
     def seekable(self) -> bool: ...
     def tell(self) -> int: ...
     def truncate(self, __size: Optional[int] = ...) -> int: ...
     def writable(self) -> bool: ...
+    write: Callable[..., Any]
     def writelines(self, __lines: Iterable[ReadableBuffer]) -> None: ...
     def readline(self, __size: Optional[int] = ...) -> bytes: ...
     def __del__(self) -> None: ...