diff --git a/src/command/join.rs b/src/command/join.rs
index 0172df4..22984c0 100644
--- a/src/command/join.rs
+++ b/src/command/join.rs
@@ -99,7 +99,6 @@ struct Handler {
 
     guild_id: Id<GuildMarker>,
     channel_id: Id<ChannelMarker>,
-    vcs: Arc<VCs>,
 
     known_ssrcs: Arc<Mutex<OneToManyUniqueBTreeMap<Id<UserMarker>, u32>>>,
 }
@@ -145,7 +144,7 @@ impl EventHandler for Handler {
                         let guild_id = self.guild_id;
                         let channel_id = self.channel_id;
 
-                        let user = user_id.map_or_else(|| "Unknown".into(), ToString::to_string);
+                        let user = user_id.as_ref().map_or_else(|| "UNKNOWN".into(), ToString::to_string);
 
                         let path = format!(
                             "{year}/{month}/{day}/{hour}/{minute}/audio-{second}.{microseconds}-{guild_id}-{channel_id}-{user}.wav"
@@ -260,14 +259,13 @@ pub async fn handle(state: State, interaction: Interaction) {
         recordings: state.recording_data,
         guild_id,
         channel_id: voice_channel_id,
-        vcs,
         known_ssrcs: Default::default(),
     };
 
     {
-        let call = call.lock().await;
+        let mut call = call.lock().await;
 
-        call.add_global_event(CoreEvent::SpeakingStateUpdate.into(), handler);
+        call.add_global_event(CoreEvent::SpeakingStateUpdate.into(), handler.clone());
         call.add_global_event(CoreEvent::VoiceTick.into(), handler);
     }