diff --git a/lib/view/pages/talk/chatDetails/participants/participantsListView.dart b/lib/view/pages/talk/chatDetails/participants/participantsListView.dart
index 2bc863b..fd6013a 100644
--- a/lib/view/pages/talk/chatDetails/participants/participantsListView.dart
+++ b/lib/view/pages/talk/chatDetails/participants/participantsListView.dart
@@ -3,26 +3,28 @@ import 'package:flutter/material.dart';
 import '../../../../../api/marianumcloud/talk/getParticipants/getParticipantsResponse.dart';
 import '../../../../../widget/userAvatar.dart';
 
-class ParticipantsListView extends StatefulWidget {
+class ParticipantsListView extends StatelessWidget {
   final GetParticipantsResponse participantsResponse;
   const ParticipantsListView(this.participantsResponse, {super.key});
 
   @override
-  State<ParticipantsListView> createState() => _ParticipantsListViewState();
-}
+  Widget build(BuildContext context) {
+    final participants = participantsResponse.data.map((participant) => ListTile(
+      leading: UserAvatar(id: participant.actorId),
+      title: Text(participant.displayName),
+      subtitle: participant.statusMessage != null ? Text(participant.statusMessage!) : null,
+    )).toList();
 
-class _ParticipantsListViewState extends State<ParticipantsListView> {
-  @override
-  Widget build(BuildContext context) => Scaffold(
+    lastname(participant) => participant.title.toString().split(' ').last;
+    participants.sort((a, b) => lastname(a).compareTo(lastname(b)));
+
+    return Scaffold(
       appBar: AppBar(
         title: const Text('Teilnehmende'),
       ),
       body: ListView(
-        children: widget.participantsResponse.data.map((participant) => ListTile(
-            leading: UserAvatar(id: participant.actorId),
-            title: Text(participant.displayName),
-            subtitle: participant.statusMessage != null ? Text(participant.statusMessage!) : null,
-          )).toList(),
+        children: participants,
       ),
     );
+  }
 }