diff --git a/packages/stream_chat_flutter/lib/src/stream_chat_theme.dart b/packages/stream_chat_flutter/lib/src/stream_chat_theme.dart
index 6bf722dc..51bbede8 100644
--- a/packages/stream_chat_flutter/lib/src/stream_chat_theme.dart
+++ b/packages/stream_chat_flutter/lib/src/stream_chat_theme.dart
@@ -1779,7 +1779,7 @@ class MessageListViewTheme extends InheritedTheme {
 class MessageListViewThemeData with Diagnosticable {
   /// Creates a [MessageListViewThemeData].
   const MessageListViewThemeData({
-    required this.backgroundColor,
+    this.backgroundColor,
   });
 
   /// The color of the [MessageListView] background.