diff --git a/src/Chart.Core.js b/src/Chart.Core.js
index 0121b11a1..66f3d1e29 100755
--- a/src/Chart.Core.js
+++ b/src/Chart.Core.js
@@ -402,7 +402,7 @@
                 return 0;
             }
         },
-        toRadians = helpers.radians = function(degrees) {
+        toRadians = helpers.toRadians = function(degrees) {
             return degrees * (Math.PI / 180);
         },
 		toDegrees = helpers.toDegrees = function(radians) {