diff --git a/mirai-core/src/commonMain/kotlin/net.mamoe.mirai/utils/io/InputUtils.kt b/mirai-core/src/commonMain/kotlin/net.mamoe.mirai/utils/io/InputUtils.kt
index 1a0527a9f..4cde854c4 100644
--- a/mirai-core/src/commonMain/kotlin/net.mamoe.mirai/utils/io/InputUtils.kt
+++ b/mirai-core/src/commonMain/kotlin/net.mamoe.mirai/utils/io/InputUtils.kt
@@ -34,7 +34,7 @@ fun ByteReadPacket.transferTo(outputStream: OutputStream) {
     }
 }
 
-fun <R> ByteReadPacket.useBytes(
+inline fun <R> ByteReadPacket.useBytes(
     n: Int = remaining.toInt(),//not that safe but adequate
     block: (data: ByteArray, length: Int) -> R
 ): R = ByteArrayPool.useInstance {