diff --git a/lib/pages/chat.dart b/lib/pages/chat.dart
index 08e26e85..56ff886a 100644
--- a/lib/pages/chat.dart
+++ b/lib/pages/chat.dart
@@ -374,7 +374,8 @@ class ChatController extends State<Chat> {
         'info': {
           ...file.info,
           'duration': result.duration,
-        }
+        },
+        'org.matrix.msc3245.voice': {},
       }),
     );
     setState(() {