diff --git a/stdlib/telnetlib.pyi b/stdlib/telnetlib.pyi
index 1f5be7a73..31fd3eef8 100644
--- a/stdlib/telnetlib.pyi
+++ b/stdlib/telnetlib.pyi
@@ -83,15 +83,15 @@ NOOPT: bytes
 
 class Telnet:
     host: Optional[str]  # undocumented
-    def __init__(self, host: Optional[str] = ..., port: int = ..., timeout: int = ...) -> None: ...
-    def open(self, host: str, port: int = ..., timeout: int = ...) -> None: ...
+    def __init__(self, host: Optional[str] = ..., port: int = ..., timeout: float = ...) -> None: ...
+    def open(self, host: str, port: int = ..., timeout: float = ...) -> None: ...
     def msg(self, msg: str, *args: Any) -> None: ...
     def set_debuglevel(self, debuglevel: int) -> None: ...
     def close(self) -> None: ...
     def get_socket(self) -> socket.socket: ...
     def fileno(self) -> int: ...
     def write(self, buffer: bytes) -> None: ...
-    def read_until(self, match: bytes, timeout: Optional[int] = ...) -> bytes: ...
+    def read_until(self, match: bytes, timeout: Optional[float] = ...) -> bytes: ...
     def read_all(self) -> bytes: ...
     def read_some(self) -> bytes: ...
     def read_very_eager(self) -> bytes: ...
@@ -108,7 +108,7 @@ class Telnet:
     def mt_interact(self) -> None: ...
     def listener(self) -> None: ...
     def expect(
-        self, list: Sequence[Union[Pattern[bytes], bytes]], timeout: Optional[int] = ...
+        self, list: Sequence[Union[Pattern[bytes], bytes]], timeout: Optional[float] = ...
     ) -> Tuple[int, Optional[Match[bytes]], bytes]: ...
     if sys.version_info >= (3, 6):
         def __enter__(self) -> Telnet: ...