diff --git a/stdlib/3/traceback.pyi b/stdlib/3/traceback.pyi
index 49d8acc1e..a5953568d 100644
--- a/stdlib/3/traceback.pyi
+++ b/stdlib/3/traceback.pyi
@@ -6,5 +6,8 @@ import typing
 def format_exception_only(etype, value): ...
 def format_tb(traceback): ...
 def print_exc(limit=..., file=..., chain=...): ...
+def extract_stack(f=..., limit=...): ...
+def extract_tb(traceback, limit=...): ...
+def format_list(list): ...
 
 # TODO add more