diff --git a/chat-langchain/app/components/ChatMessageBubble.tsx b/chat-langchain/app/components/ChatMessageBubble.tsx
index 1f8be8918..b3d41e5fc 100644
--- a/chat-langchain/app/components/ChatMessageBubble.tsx
+++ b/chat-langchain/app/components/ChatMessageBubble.tsx
@@ -66,7 +66,7 @@ const createAnswerElements = (
     React.SetStateAction<boolean[]>
   >,
 ) => {
-  const matches = Array.from(content.matchAll(/\[\^?(\d+)\^?\]/g));
+  const matches = Array.from(content.matchAll(/\[\^?\$?{?(\d+)}?\^?\]/g));
   const elements: JSX.Element[] = [];
   let prevIndex = 0;