diff --git a/2-ui/99-ui-misc/03-event-loop/article.md b/2-ui/99-ui-misc/03-event-loop/article.md
index ad50e895..eb99f093 100644
--- a/2-ui/99-ui-misc/03-event-loop/article.md
+++ b/2-ui/99-ui-misc/03-event-loop/article.md
@@ -78,7 +78,7 @@ function count() {
 count();
 ```
 
-The browser may even show "the script takes too long" warning.
+The browser may even show a "the script takes too long" warning.
 
 Let's split the job using nested `setTimeout` calls: