diff --git a/lib/buffer.js b/lib/buffer.js
index 2ceb7ce1c94..c7ffa42a548 100644
--- a/lib/buffer.js
+++ b/lib/buffer.js
@@ -37,14 +37,7 @@ const {
   kMaxLength,
   kStringMaxLength
 } = process.binding('buffer');
-// We cannot use internalBinding unconditionally here because of the way
-// that test/parallel/test-buffer-bindingobj-no-zerofill.js is written.
-let isAnyArrayBuffer;
-try {
-  isAnyArrayBuffer = internalBinding('types').isAnyArrayBuffer;
-} catch (e) {
-  isAnyArrayBuffer = require('util').types.isAnyArrayBuffer;
-}
+const { isAnyArrayBuffer } = internalBinding('types');
 const {
   customInspectSymbol,
   isInsideNodeModules,