diff --git a/snippets_archive/squareSum.md b/snippets_archive/squareSum.md
index 3ae951334..b130d5d35 100644
--- a/snippets_archive/squareSum.md
+++ b/snippets_archive/squareSum.md
@@ -6,10 +6,9 @@ Use `Array.prototype.reduce()` to iterate over numbers and to declare an accumul
 Use `Math.pow()` to calculate power of each number and add all numbers into acculmulator.
 
 ```js
-const squareSum = (arr) => arr.reduce((squareSum, number) =>
-	squareSum + Math.pow(number, 2), 0);
+const squareSum = (...arr) => arr.reduce((squareSum, number) => squareSum + Math.pow(number, 2), 0);
 ```
 
 ```js
-squareSum([1, 2, 2]); // 9
+squareSum(1, 2, 2); // 9
 ```
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