diff --git a/stdlib/3.4/selectors.pyi b/stdlib/3.4/selectors.pyi
index 547ae0218..38f49fe38 100644
--- a/stdlib/3.4/selectors.pyi
+++ b/stdlib/3.4/selectors.pyi
@@ -37,7 +37,7 @@ class BaseSelector(metaclass=ABCMeta):
     def modify(self, fileobj: _FileObject, events: _EventMask, data: Any = ...) -> SelectorKey: ...
 
     @abstractmethod
-    def select(self, timeout: Optional[int] = ...) -> List[Tuple[SelectorKey, _EventMask]]: ...
+    def select(self, timeout: Optional[float] = ...) -> List[Tuple[SelectorKey, _EventMask]]: ...
 
     def close(self) -> None: ...
 
@@ -53,38 +53,38 @@ class BaseSelector(metaclass=ABCMeta):
 class SelectSelector(BaseSelector):
     def register(self, fileobj: _FileObject, events: _EventMask, data: Any = ...) -> SelectorKey: ...
     def unregister(self, fileobj: _FileObject) -> SelectorKey: ...
-    def select(self, timeout: Optional[int] = ...) -> List[Tuple[SelectorKey, _EventMask]]: ...
+    def select(self, timeout: Optional[float] = ...) -> List[Tuple[SelectorKey, _EventMask]]: ...
     def get_map(self) -> Mapping[_FileObject, SelectorKey]: ...
 
 class PollSelector(BaseSelector):
     def register(self, fileobj: _FileObject, events: _EventMask, data: Any = ...) -> SelectorKey: ...
     def unregister(self, fileobj: _FileObject) -> SelectorKey: ...
-    def select(self, timeout: Optional[int] = ...) -> List[Tuple[SelectorKey, _EventMask]]: ...
+    def select(self, timeout: Optional[float] = ...) -> List[Tuple[SelectorKey, _EventMask]]: ...
     def get_map(self) -> Mapping[_FileObject, SelectorKey]: ...
 
 class EpollSelector(BaseSelector):
     def fileno(self) -> int: ...
     def register(self, fileobj: _FileObject, events: _EventMask, data: Any = ...) -> SelectorKey: ...
     def unregister(self, fileobj: _FileObject) -> SelectorKey: ...
-    def select(self, timeout: Optional[int] = ...) -> List[Tuple[SelectorKey, _EventMask]]: ...
+    def select(self, timeout: Optional[float] = ...) -> List[Tuple[SelectorKey, _EventMask]]: ...
     def get_map(self) -> Mapping[_FileObject, SelectorKey]: ...
 
 class DevpollSelector(BaseSelector):
     def fileno(self) -> int: ...
     def register(self, fileobj: _FileObject, events: _EventMask, data: Any = ...) -> SelectorKey: ...
     def unregister(self, fileobj: _FileObject) -> SelectorKey: ...
-    def select(self, timeout: Optional[int] = ...) -> List[Tuple[SelectorKey, _EventMask]]: ...
+    def select(self, timeout: Optional[float] = ...) -> List[Tuple[SelectorKey, _EventMask]]: ...
     def get_map(self) -> Mapping[_FileObject, SelectorKey]: ...
 
 class KqueueSelector(BaseSelector):
     def fileno(self) -> int: ...
     def register(self, fileobj: _FileObject, events: _EventMask, data: Any = ...) -> SelectorKey: ...
     def unregister(self, fileobj: _FileObject) -> SelectorKey: ...
-    def select(self, timeout: Optional[int] = ...) -> List[Tuple[SelectorKey, _EventMask]]: ...
+    def select(self, timeout: Optional[float] = ...) -> List[Tuple[SelectorKey, _EventMask]]: ...
     def get_map(self) -> Mapping[_FileObject, SelectorKey]: ...
 
 class DefaultSelector(BaseSelector):
     def register(self, fileobj: _FileObject, events: _EventMask, data: Any = ...) -> SelectorKey: ...
     def unregister(self, fileobj: _FileObject) -> SelectorKey: ...
-    def select(self, timeout: Optional[int] = ...) -> List[Tuple[SelectorKey, _EventMask]]: ...
+    def select(self, timeout: Optional[float] = ...) -> List[Tuple[SelectorKey, _EventMask]]: ...
     def get_map(self) -> Mapping[_FileObject, SelectorKey]: ...