diff --git a/discord/app_commands/transformers.py b/discord/app_commands/transformers.py
index 6c7198505..cfc145a9d 100644
--- a/discord/app_commands/transformers.py
+++ b/discord/app_commands/transformers.py
@@ -541,6 +541,7 @@ ALLOWED_DEFAULTS: Dict[AppCommandOptionType, Tuple[Type[Any], ...]] = {
     AppCommandOptionType.string: (str, NoneType),
     AppCommandOptionType.integer: (int, NoneType),
     AppCommandOptionType.boolean: (bool, NoneType),
+    AppCommandOptionType.number: (float, NoneType),
 }