diff --git a/1-js/02-first-steps/12-while-for/article.md b/1-js/02-first-steps/12-while-for/article.md
index 55ea6302..b043e4a6 100644
--- a/1-js/02-first-steps/12-while-for/article.md
+++ b/1-js/02-first-steps/12-while-for/article.md
@@ -188,7 +188,7 @@ We can also remove the `step` part:
 let i = 0;
 
 for (; i < 3;) {
-  alert( i );
+  alert( i++ );
 }
 ```