diff --git a/12_calculator/solution/calculator-solution.js b/12_calculator/solution/calculator-solution.js
index 4d912008317..05c8db0b084 100644
--- a/12_calculator/solution/calculator-solution.js
+++ b/12_calculator/solution/calculator-solution.js
@@ -15,7 +15,7 @@ const multiply = function (array) {
 };
 
 const power = function (a, b) {
-  return Math.pow(a, b);
+  return a**b;
 };
 
 const factorial = function (n) {