diff --git a/4-ajax/8-xhr-longpoll/article.md b/4-ajax/8-xhr-longpoll/article.md
index 0d31af5f..1b6864fd 100644
--- a/4-ajax/8-xhr-longpoll/article.md
+++ b/4-ajax/8-xhr-longpoll/article.md
@@ -74,7 +74,7 @@ function subscribe(url) {
 
 Демо:
 
-[codetabs src="longpoll"]
+[codetabs src="longpoll" height=500]
 
 ## Область применения