diff --git a/exception_escaping/proxy_module.py b/exception_escaping/proxy_module.py
index 0dca7a6..fd2210d 100644
--- a/exception_escaping/proxy_module.py
+++ b/exception_escaping/proxy_module.py
@@ -5,7 +5,7 @@
 
 
 class ProxyModule(sys.modules[__name__].__class__):  # type: ignore[misc]
-    def __call__(self, *args: Callable[..., Any], default_return: Any = None) -> Union[Callable[..., Any], Callable[Callable[..., Any], Callable[..., Any]]]:
+    def __call__(self, *args: Callable[..., Any], default_return: Any = None) -> Union[Callable[..., Any], Callable[[Callable[..., Any]], Callable[..., Any]]]:
         def wrapper_of_wrappers(function: Callable[..., Any]) -> Callable[..., Any]:
             @wraps(function)
             def wrapper(*args: Any, **kwargs: Any) -> Any: