diff --git a/stdlib/3/queue.pyi b/stdlib/3/queue.pyi
index 90cd5fc28..28609a067 100644
--- a/stdlib/3/queue.pyi
+++ b/stdlib/3/queue.pyi
@@ -6,6 +6,9 @@ from typing import Any, TypeVar, Generic
 
 _T = TypeVar('_T')
 
+class Empty(Exception): ...
+class Full(Exception): ...
+
 class Queue(Generic[_T]):
     def __init__(self, maxsize: int = ...) -> None: ...
     def full(self) -> bool: ...
@@ -17,4 +20,5 @@ class Queue(Generic[_T]):
     def qsize(self) -> int: ...
     def task_done(self) -> None: pass
 
-class Empty(Exception): ...
+class PriorityQueue(Queue): ...
+class LifoQueue(Queue): ...