diff --git a/curriculum/challenges/english/14-responsive-web-design-22/learn-html-by-building-a-cat-photo-app/5ef9b03c81a63668521804d2.md b/curriculum/challenges/english/14-responsive-web-design-22/learn-html-by-building-a-cat-photo-app/5ef9b03c81a63668521804d2.md
index 0ae4f2929d5..aa71bdda6ac 100644
--- a/curriculum/challenges/english/14-responsive-web-design-22/learn-html-by-building-a-cat-photo-app/5ef9b03c81a63668521804d2.md
+++ b/curriculum/challenges/english/14-responsive-web-design-22/learn-html-by-building-a-cat-photo-app/5ef9b03c81a63668521804d2.md
@@ -57,6 +57,12 @@ assert.deepStrictEqual(
 );
 ```
 
+You should only have one `ol` element.
+
+```js 
+assert([...document.querySelectorAll('ol')].length == 1);
+```
+
 # --seed--
 
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