diff --git a/lib/view/pages/talk/joinChat.dart b/lib/view/pages/talk/joinChat.dart
index edc27b2..f973b44 100644
--- a/lib/view/pages/talk/joinChat.dart
+++ b/lib/view/pages/talk/joinChat.dart
@@ -8,7 +8,7 @@ import '../../../api/marianumcloud/autocomplete/autocompleteResponse.dart';
 import '../../../widget/errorView.dart';
 
 class JoinChat extends SearchDelegate<String> {
-  CancelableOperation? future;
+  CancelableOperation<AutocompleteResponse>? future;
 
   @override
   List<Widget>? buildActions(BuildContext context) {
@@ -54,7 +54,7 @@ class JoinChat extends SearchDelegate<String> {
     }
 
     future = CancelableOperation.fromFuture(AutocompleteApi().find(query));
-    return FutureBuilder(
+    return FutureBuilder<AutocompleteResponse>(
       future: future!.value,
       builder: (context, snapshot) {
         if(snapshot.hasData) {