diff --git a/lib/api/readable.js b/lib/api/readable.js
index ed530b1eb81..50a23f36d8a 100644
--- a/lib/api/readable.js
+++ b/lib/api/readable.js
@@ -299,9 +299,18 @@ function consumeEnd (consume) {
       case 'json':
         resolve(JSON.parse(utf8DecodeBytes(Buffer.concat(body, length))))
         break
-      case 'arrayBuffer':
-        resolve(Buffer.concat(body, length).buffer)
+      case 'arrayBuffer': {
+        const dst = new Uint8Array(length)
+
+        let pos = 0
+        for (const buf of body) {
+          dst.set(buf, pos)
+          pos += buf.byteLength
+        }
+
+        resolve(dst.buffer)
         break
+      }
       case 'blob':
         resolve(new (Blob ??= require('buffer').Blob)(body, { type: stream[kContentType] }))
         break