diff --git a/protocol/src/commonMain/kotlin/com/github/topi314/lavaqueue/protocol/messages.kt b/protocol/src/commonMain/kotlin/com/github/topi314/lavaqueue/protocol/messages.kt
index 0963be7..0025b21 100644
--- a/protocol/src/commonMain/kotlin/com/github/topi314/lavaqueue/protocol/messages.kt
+++ b/protocol/src/commonMain/kotlin/com/github/topi314/lavaqueue/protocol/messages.kt
@@ -6,9 +6,15 @@ import kotlinx.serialization.Serializable
 
 @SerialName("ready")
 @Serializable
-data class QueueEndEvent(
+@Suppress("DataClassPrivateConstructor")
+data class QueueEndEvent private constructor(
+    val op: Message.Op,
+    val type: String,
     val guildId: String
 ) {
-    val op: Message.Op = Message.Op.Event
-    val type: String = "QueueEndEvent"
+    constructor(guildId: String) : this(
+        Message.Op.Event,
+        "QueueEndEvent",
+        guildId,
+    )
 }
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