diff --git a/typings/index.d.ts b/typings/index.d.ts
index 5142518ce861..92b5bf0934f2 100644
--- a/typings/index.d.ts
+++ b/typings/index.d.ts
@@ -287,8 +287,8 @@ declare module 'discord.js' {
     public remove(...bits: BitFieldResolvable<S, N>[]): BitField<S, N>;
     public serialize(...hasParam: readonly unknown[]): Record<S, boolean>;
     public toArray(...hasParam: readonly unknown[]): S[];
-    public toJSON(): number;
-    public valueOf(): number;
+    public toJSON(): N extends number ? number : string;
+    public valueOf(): N;
     public [Symbol.iterator](): IterableIterator<S>;
     public static FLAGS: unknown;
     public static resolve(bit?: BitFieldResolvable<any, number | bigint>): number | bigint;