diff --git a/src/replit/maqpy/utils.py b/src/replit/maqpy/utils.py
index 266699f..7665aed 100644
--- a/src/replit/maqpy/utils.py
+++ b/src/replit/maqpy/utils.py
@@ -57,7 +57,7 @@ def needs_signin(func: Callable = None, login_html: str = sign_in_snippet) -> Ca
 
 def needs_params(
     *param_names: str, onerror: Callable[[Tuple[str]], flask.Response] = None
-) -> Callable[FunctionType]:
+) -> Callable:
     """Require paramaters before a handler can be activated.
 
     Args: