diff --git a/mirai-core/src/commonMain/kotlin/net.mamoe.mirai/utils/Annotations.kt b/mirai-core/src/commonMain/kotlin/net.mamoe.mirai/utils/Annotations.kt
index 20bdce50f..95cb38e13 100644
--- a/mirai-core/src/commonMain/kotlin/net.mamoe.mirai/utils/Annotations.kt
+++ b/mirai-core/src/commonMain/kotlin/net.mamoe.mirai/utils/Annotations.kt
@@ -15,7 +15,9 @@ import kotlin.annotation.AnnotationTarget.*
     FUNCTION,
     PROPERTY
 )
-annotation class MiraiInternalAPI
+annotation class MiraiInternalAPI(
+    val message: String = ""
+)
 
 /**
  * 标记这个类, 类型, 函数, 属性, 字段, 或构造器为实验性的.