From c4c651bc1ae96cbb5dea0a418df6dc6927464a4f Mon Sep 17 00:00:00 2001
From: Nitish Kumar Singh <nitishk72@gmail.com>
Date: Mon, 4 Oct 2021 16:59:56 +0530
Subject: [PATCH] capitalize extension fix

---
 packages/stream_chat_flutter/lib/src/extension.dart | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/stream_chat_flutter/lib/src/extension.dart b/packages/stream_chat_flutter/lib/src/extension.dart
index 9551a40d..0072a811 100644
--- a/packages/stream_chat_flutter/lib/src/extension.dart
+++ b/packages/stream_chat_flutter/lib/src/extension.dart
@@ -12,7 +12,7 @@ final _emojiChars = Emoji.chars();
 extension StringExtension on String {
   /// Returns the capitalized string
   String capitalize() =>
-      '${this[0].toUpperCase()}${substring(1).toLowerCase()}';
+      isNotEmpty ? '${this[0].toUpperCase()}${substring(1).toLowerCase()}' : '';
 
   /// Returns whether the string contains only emoji's or not.
   ///