diff --git a/1-js/02-first-steps/01-hello-world/2-hello-alert-ext/task.md b/1-js/02-first-steps/01-hello-world/2-hello-alert-ext/task.md
index fe38de40..26168d6a 100644
--- a/1-js/02-first-steps/01-hello-world/2-hello-alert-ext/task.md
+++ b/1-js/02-first-steps/01-hello-world/2-hello-alert-ext/task.md
@@ -6,4 +6,4 @@ importance: 5
 
 Take the solution of the previous task <info:task/hello-alert>. Modify it by extracting the script content into an external file `alert.js`, residing in the same folder.
 
-Open the page, ensures that the alert works.
+Open the page, ensure that the alert works.