diff --git a/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/message/conversions.kt b/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/message/conversions.kt
index e9cf93354..cce2600be 100644
--- a/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/message/conversions.kt
+++ b/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/message/conversions.kt
@@ -232,7 +232,7 @@ internal fun MsgComm.Msg.toMessageChain(
 
     val pptMsg = ptt?.run {
         when (fileType) {
-            4 -> Voice(String(fileName), fileMd5, fileSize.toLong(), time, String(downPara))
+            4 -> Voice(String(fileName), fileMd5, fileSize.toLong(),String(downPara))
             else -> null
         }
     }
diff --git a/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/packet/chat/receive/MessageSvc.PbSendMsg.kt b/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/packet/chat/receive/MessageSvc.PbSendMsg.kt
index 2c2f2e591..6e3a8610c 100644
--- a/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/packet/chat/receive/MessageSvc.PbSendMsg.kt
+++ b/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/packet/chat/receive/MessageSvc.PbSendMsg.kt
@@ -145,7 +145,6 @@ internal object MessageSvcPbSendMsg : OutgoingPacketFactory<MessageSvcPbSendMsg.
                                 boolValid = true,
                                 fileSize = fileSize.toInt(),
                                 fileType = 4,
-                                time = voiceLength,
                                 pbReserve = byteArrayOf(0)
                             )
                         }
diff --git a/mirai-core/src/commonMain/kotlin/net.mamoe.mirai/message/data/Voice.kt b/mirai-core/src/commonMain/kotlin/net.mamoe.mirai/message/data/Voice.kt
index 0731ab1fb..7e641c5ea 100644
--- a/mirai-core/src/commonMain/kotlin/net.mamoe.mirai/message/data/Voice.kt
+++ b/mirai-core/src/commonMain/kotlin/net.mamoe.mirai/message/data/Voice.kt
@@ -16,8 +16,6 @@ abstract class PttMessage : MessageContent {
     abstract val fileName: String
     abstract val md5: ByteArray
     abstract val fileSize: Long
-    abstract val voiceLength:Int
-
 }
 
 
@@ -29,7 +27,6 @@ class Voice(
     override val fileName: String,
     override val md5: ByteArray,
     override val fileSize: Long,
-    override val voiceLength: Int,
     private val _url: String
 ) : PttMessage() {