diff --git a/sample_app/lib/app.dart b/sample_app/lib/app.dart
index 1a181fe26..17ce03677 100644
--- a/sample_app/lib/app.dart
+++ b/sample_app/lib/app.dart
@@ -519,6 +519,7 @@ class _StreamChatSampleAppState extends State<StreamChatSampleApp>
                       ),
                       streamChatConfigData: StreamChatConfigurationData(
                         draftMessagesEnabled: true,
+                        enforceUniqueReactions: false,
                         attachmentBuilders: [
                           LocationAttachmentBuilder(
                             onAttachmentTap: (context, location) {