diff --git a/packages/core-js/internals/math-scale.js b/packages/core-js/internals/math-scale.js
index 6a9087d94232..d3e2ceb5f4aa 100644
--- a/packages/core-js/internals/math-scale.js
+++ b/packages/core-js/internals/math-scale.js
@@ -1,7 +1,7 @@
 'use strict';
 // `Math.scale` method implementation
 // https://rwaldron.github.io/proposal-math-extensions/
-module.exports = Math.scale || function scale(x, inLow, inHigh, outLow, outHigh) {
+module.exports = function scale(x, inLow, inHigh, outLow, outHigh) {
   var nx = +x;
   var nInLow = +inLow;
   var nInHigh = +inHigh;