1 files changed, 3 insertions, 4 deletions
diff --git a/lib/internal/parallel.js b/lib/internal/parallel.js
index bbfdb42..6246d8f 100644
--- a/lib/internal/parallel.js
+++ b/lib/internal/parallel.js
@@ -1,6 +1,5 @@
 import isArrayLike from './isArrayLike';
 import noop from './noop';
-import slice from './slice';
 import wrapAsync from './wrapAsync';
 
 export default function _parallel(eachfn, tasks, callback) {
@@ -8,9 +7,9 @@ export default function _parallel(eachfn, tasks, callback) {
     var results = isArrayLike(tasks) ? [] : {};
 
     eachfn(tasks, function (task, key, callback) {
-        wrapAsync(task)(function (err, result) {
-            if (arguments.length > 2) {
-                result = slice(arguments, 1);
+        wrapAsync(task)(function (err, ...result) {
+            if (result.length < 2) {
+                result = result[0];
             }
             results[key] = result;
             callback(err);