diff --git a/webserver/src/main/kotlin/space/mori/chzzk_bot/webserver/routes/WSSongRoutes.kt b/webserver/src/main/kotlin/space/mori/chzzk_bot/webserver/routes/WSSongRoutes.kt
index 2439f6d..47632b7 100644
--- a/webserver/src/main/kotlin/space/mori/chzzk_bot/webserver/routes/WSSongRoutes.kt
+++ b/webserver/src/main/kotlin/space/mori/chzzk_bot/webserver/routes/WSSongRoutes.kt
@@ -26,7 +26,7 @@ import java.util.concurrent.ConcurrentLinkedQueue
 val songScope = CoroutineScope(SupervisorJob() + Dispatchers.Default)
 fun Routing.wsSongRoutes() {
     environment.monitor.subscribe(ApplicationStopped) {
-        songListScope.cancel()
+        songScope.cancel()
     }
     val sessions = ConcurrentHashMap<String, ConcurrentLinkedQueue<WebSocketServerSession>>()
     val status = ConcurrentHashMap<String, SongType>()
@@ -77,7 +77,7 @@ fun Routing.wsSongRoutes() {
     fun broadcastMessage(userId: String, message: SongResponse) {
         val userSessions = sessions[userId]
         userSessions?.forEach { session ->
-            songListScope.launch {
+            songScope.launch {
                 val success = sendWithRetry(session, message)
                 if (!success) {
                     logger.info("Removing session for user $userId due to repeated failures.")
@@ -96,7 +96,7 @@ fun Routing.wsSongRoutes() {
         }
         addSession(uid, this)
         if(status[uid] == SongType.STREAM_OFF) {
-            songListScope.launch {
+            songScope.launch {
                 sendSerialized(SongResponse(
                     SongType.STREAM_OFF.value,
                     uid,
@@ -135,7 +135,7 @@ fun Routing.wsSongRoutes() {
 
     dispatcher.subscribe(SongEvent::class) {
         logger.debug("SongEvent: {} / {} {}", it.uid, it.type, it.current?.name)
-        songListScope.launch {
+        songScope.launch {
             broadcastMessage(it.uid, SongResponse(
                 it.type.value,
                 it.uid,
@@ -148,7 +148,7 @@ fun Routing.wsSongRoutes() {
     }
     dispatcher.subscribe(TimerEvent::class) {
         if(it.type == TimerType.STREAM_OFF) {
-            songListScope.launch {
+            songScope.launch {
                 broadcastMessage(it.uid, SongResponse(
                     it.type.value,
                     it.uid,
diff --git a/webserver/src/main/kotlin/space/mori/chzzk_bot/webserver/routes/WSTimerRoutes.kt b/webserver/src/main/kotlin/space/mori/chzzk_bot/webserver/routes/WSTimerRoutes.kt
index 70a8753..dad9c75 100644
--- a/webserver/src/main/kotlin/space/mori/chzzk_bot/webserver/routes/WSTimerRoutes.kt
+++ b/webserver/src/main/kotlin/space/mori/chzzk_bot/webserver/routes/WSTimerRoutes.kt
@@ -27,7 +27,7 @@ import java.util.concurrent.ConcurrentLinkedQueue
 val timerScope = CoroutineScope(SupervisorJob() + Dispatchers.Default)
 fun Routing.wsTimerRoutes() {
     environment.monitor.subscribe(ApplicationStopped) {
-        songListScope.cancel()
+        timerScope.cancel()
     }
     val sessions = ConcurrentHashMap<String, ConcurrentLinkedQueue<WebSocketServerSession>>()
     val logger = LoggerFactory.getLogger("WSTimerRoutes")
@@ -77,7 +77,7 @@ fun Routing.wsTimerRoutes() {
     fun broadcastMessage(uid: String, message: TimerResponse) {
         val userSessions = sessions[uid]
         userSessions?.forEach { session ->
-            songListScope.launch {
+            timerScope.launch {
                 val success = sendWithRetry(session, message.copy(uid = uid))
                 if (!success) {
                     logger.info("Removing session for user $uid due to repeated failures.")
@@ -98,11 +98,11 @@ fun Routing.wsTimerRoutes() {
         val timer = CurrentTimer.getTimer(user)
 
         if (timer?.type == TimerType.STREAM_OFF) {
-            songListScope.launch {
+            timerScope.launch {
                 sendSerialized(TimerResponse(TimerType.STREAM_OFF.value, null, uid))
             }
         } else {
-            songListScope.launch {
+            timerScope.launch {
                 if(timer?.type == TimerType.STREAM_OFF) {
                     sendSerialized(TimerResponse(TimerType.STREAM_OFF.value, null, uid))
                 } else {
@@ -157,7 +157,7 @@ fun Routing.wsTimerRoutes() {
         logger.debug("TimerEvent: {} / {}", it.uid, it.type)
         val user = UserService.getUser(it.uid)
         CurrentTimer.setTimer(user!!, it)
-        songListScope.launch {
+        timerScope.launch {
             broadcastMessage(it.uid, TimerResponse(it.type.value, it.time ?: "", it.uid))
         }
     }