diff --git a/packages/hydrooj/src/interface.ts b/packages/hydrooj/src/interface.ts
index 531b98d9c..78c6803de 100644
--- a/packages/hydrooj/src/interface.ts
+++ b/packages/hydrooj/src/interface.ts
@@ -787,7 +787,7 @@ export interface ModuleInterfaces {
         callback: (this: Handler, args: Record<string, any>) => Promise<OAuthUserResponse>;
     };
     hash: (password: string, salt: string, user: User) => boolean | string;
-    render: (name: string, state: any) => Promise<string>;
+    render: (name: string, state: any) => string | Promise<string>;
 }
 
 export interface HydroGlobal {