diff --git a/typings/primordials.d.ts b/typings/primordials.d.ts
index da00d43f515286..820b1eddc5a3d0 100644
--- a/typings/primordials.d.ts
+++ b/typings/primordials.d.ts
@@ -154,6 +154,7 @@ declare namespace primordials {
   export const ArrayBufferPrototypeGetDetached: UncurryThis<typeof ArrayBuffer.prototype.detached>
   export const ArrayBufferPrototypeSlice: UncurryThis<typeof ArrayBuffer.prototype.slice>
   export const ArrayBufferPrototypeTransfer: UncurryThis<typeof ArrayBuffer.prototype.transfer>
+  export const ArrayBufferPrototypeGetByteLength: UncurryGetter<typeof ArrayBuffer.prototype , "byteLength">;
   export const AsyncIteratorPrototype: AsyncIterable<any>;
   export import BigInt = globalThis.BigInt;
   export const BigIntPrototype: typeof BigInt.prototype