diff --git a/stubs/Pygments/pygments/formatters/__init__.pyi b/stubs/Pygments/pygments/formatters/__init__.pyi
index 0dd9f2890..b77043bb3 100644
--- a/stubs/Pygments/pygments/formatters/__init__.pyi
+++ b/stubs/Pygments/pygments/formatters/__init__.pyi
@@ -1,3 +1,6 @@
+from typing import Generator, Type
+
+from ..formatter import Formatter
 from .bbcode import BBCodeFormatter as BBCodeFormatter
 from .html import HtmlFormatter as HtmlFormatter
 from .img import (
@@ -15,7 +18,7 @@ from .svg import SvgFormatter as SvgFormatter
 from .terminal import TerminalFormatter as TerminalFormatter
 from .terminal256 import Terminal256Formatter as Terminal256Formatter, TerminalTrueColorFormatter as TerminalTrueColorFormatter
 
-def get_all_formatters() -> None: ...
+def get_all_formatters() -> Generator[Type[Formatter], None, None]: ...
 def get_formatter_by_name(_alias, **options): ...
 def load_formatter_from_file(filename, formattername: str = ..., **options): ...
 def get_formatter_for_filename(fn, **options): ...