diff --git a/packages/stream_chat_flutter/lib/src/theme/message_list_view_theme.dart b/packages/stream_chat_flutter/lib/src/theme/message_list_view_theme.dart
index 1e968fed..e4857a79 100644
--- a/packages/stream_chat_flutter/lib/src/theme/message_list_view_theme.dart
+++ b/packages/stream_chat_flutter/lib/src/theme/message_list_view_theme.dart
@@ -118,8 +118,11 @@ class MessageListViewThemeData with Diagnosticable {
     properties
       ..add(ColorProperty('backgroundColor', backgroundColor))
       ..add(
-        DiagnosticsProperty<DecorationImage>('backgroundImage', backgroundImage,
-            defaultValue: null),
+        DiagnosticsProperty<DecorationImage>(
+          'backgroundImage',
+          backgroundImage,
+          defaultValue: null,
+        ),
       );
   }
 }