diff --git a/discord/utils.py b/discord/utils.py
index dac6f9da0..920222a94 100644
--- a/discord/utils.py
+++ b/discord/utils.py
@@ -916,7 +916,7 @@ def evaluate_annotation(
         is_literal = False
         args = tp.__args__
         if not hasattr(tp, '__origin__'):
-            if PY_310 and tp.__class__ is types.Union:  # type: ignore
+            if PY_310 and tp.__class__ is types.UnionType:  # type: ignore
                 converted = Union[args]  # type: ignore
                 return evaluate_annotation(converted, globals, locals, cache)