diff --git a/src/database.ts b/src/database.ts
index 917e024..aac0724 100644
--- a/src/database.ts
+++ b/src/database.ts
@@ -312,6 +312,7 @@ export const CreateClassSchema = S.struct({
   educator_id: S.number,
   name: S.string,
   expected_size: S.number.pipe(S.int()),
+  asynchronous: S.optional(S.boolean),
 });
 
 export type CreateClassOptions = S.Schema.To<typeof CreateClassSchema>;