diff --git a/lib/internal/util.js b/lib/internal/util.js
index 4ead8705777ee8..6929085d469676 100644
--- a/lib/internal/util.js
+++ b/lib/internal/util.js
@@ -282,7 +282,7 @@ function promisify(original) {
   }
 
   // Names to create an object from in case the callback receives multiple
-  // arguments, e.g. ['stdout', 'stderr'] for child_process.exec.
+  // arguments, e.g. ['bytesRead', 'buffer'] for fs.read.
   const argumentNames = original[kCustomPromisifyArgsSymbol];
 
   function fn(...args) {