diff --git a/04_quicksort/ES6/01_loop_sum_reduce_version.js b/04_quicksort/ES6/01_loop_sum_reduce_version.js
index 7dc84dd..ca41359 100644
--- a/04_quicksort/ES6/01_loop_sum_reduce_version.js
+++ b/04_quicksort/ES6/01_loop_sum_reduce_version.js
@@ -3,6 +3,6 @@
  * @param {Array} array Array of numbers
  * @returns {number} Sum of the numbers
  */
-const sumReduce = array => array.reduce((curr, prev) => curr + prev);
+const sumReduce = array => array.reduce((prev, curr) => prev + curr);
 
 console.log(sumReduce([1, 2, 3, 4])); // 10