diff --git a/lib/internal/webstreams/util.js b/lib/internal/webstreams/util.js
index 9b87207b59428e..e862b3ffe25724 100644
--- a/lib/internal/webstreams/util.js
+++ b/lib/internal/webstreams/util.js
@@ -176,13 +176,13 @@ function enqueueValueWithSize(controller, value, size) {
 
 // This implements "invoke a callback function type" for callback functions that return a promise.
 // See https://webidl.spec.whatwg.org/#es-invoking-callback-functions
-async function ensureIsPromise(fn, thisArg, ...args) {
+async function invokePromiseCallback(fn, thisArg, ...args) {
   return FunctionPrototypeCall(fn, thisArg, ...args);
 }
 
 function createPromiseCallback(name, fn, thisArg) {
   validateFunction(fn, name);
-  return (...args) => ensureIsPromise(fn, thisArg, ...args);
+  return (...args) => invokePromiseCallback(fn, thisArg, ...args);
 }
 
 function isPromisePending(promise) {
@@ -274,11 +274,11 @@ module.exports = {
   copyArrayBuffer,
   customInspect,
   dequeueValue,
-  ensureIsPromise,
   enqueueValueWithSize,
   extractHighWaterMark,
   extractSizeAlgorithm,
   lazyTransfer,
+  invokePromiseCallback,
   isBrandCheck,
   isPromisePending,
   isViewedArrayBufferDetached,