1 files changed, 3 insertions, 5 deletions
diff --git a/lib/reduce.js b/lib/reduce.js
index de42c5e..963d619 100644
--- a/lib/reduce.js
+++ b/lib/reduce.js
@@ -46,12 +46,10 @@ import wrapAsync from './internal/wrapAsync';
 export default function reduce(coll, memo, iteratee, callback) {
     callback = once(callback || noop);
     var _iteratee = wrapAsync(iteratee);
-    eachOfSeries(coll, function(x, i, callback) {
-        _iteratee(memo, x, function(err, v) {
+    eachOfSeries(coll, (x, i, callback) => {
+        _iteratee(memo, x, (err, v) => {
             memo = v;
             callback(err);
         });
-    }, function(err) {
-        callback(err, memo);
-    });
+    }, err => callback(err, memo));
 }