diff --git a/third_party/3/typed_ast/ast3.pyi b/third_party/3/typed_ast/ast3.pyi
index 0b600af98..810c8a6b0 100644
--- a/third_party/3/typed_ast/ast3.pyi
+++ b/third_party/3/typed_ast/ast3.pyi
@@ -260,7 +260,7 @@ class Call(expr):
     keywords = ...  # type: typing.List[keyword]
 
 class Num(expr):
-    n = ...  # type: float
+    n = ...  # type: Union[float, int, complex]
 
 class Str(expr):
     s = ...  # type: str