From 075bc04a2bc2903467f00910f6a9568e4dd98621 Mon Sep 17 00:00:00 2001
From: Tom <20648924+moT01@users.noreply.github.com>
Date: Thu, 23 Dec 2021 00:51:03 -0600
Subject: [PATCH] fix: step-1 crashing (#44561)

---
 client/src/templates/Challenges/classic/editor.tsx | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/client/src/templates/Challenges/classic/editor.tsx b/client/src/templates/Challenges/classic/editor.tsx
index 8f8a9026104..c8193422793 100644
--- a/client/src/templates/Challenges/classic/editor.tsx
+++ b/client/src/templates/Challenges/classic/editor.tsx
@@ -907,8 +907,8 @@ const Editor = (props: EditorProps): JSX.Element => {
     if (!previewOpen && showProjectPreview) {
       const description = document.getElementsByClassName(
         'description-container'
-      )[0];
-      description.classList.add('description-highlighter');
+      )?.[0];
+      description?.classList.add('description-highlighter');
     }
     // eslint-disable-next-line react-hooks/exhaustive-deps
   }, [props.previewOpen]);