diff --git a/1-js/07-object-oriented-programming/09-class/1-rewrite-to-class/source.view/clock.js b/1-js/07-object-oriented-programming/09-class/1-rewrite-to-class/source.view/clock.js
index b1a26250..d312c93e 100644
--- a/1-js/07-object-oriented-programming/09-class/1-rewrite-to-class/source.view/clock.js
+++ b/1-js/07-object-oriented-programming/09-class/1-rewrite-to-class/source.view/clock.js
@@ -11,7 +11,7 @@ Clock.prototype._render = function() {
   if (hours < 10) hours = '0' + hours;
 
   let mins = date.getMinutes();
-  if (mins < 10) min = '0' + mins;
+  if (mins < 10) mins = '0' + mins;
 
   let secs = date.getSeconds();
   if (secs < 10) secs = '0' + secs;