diff --git a/mirai-core/src/commonMain/kotlin/net.mamoe.mirai/message/data/builder.kt b/mirai-core/src/commonMain/kotlin/net.mamoe.mirai/message/data/builder.kt
index bd540c4e1..cbb84720f 100644
--- a/mirai-core/src/commonMain/kotlin/net.mamoe.mirai/message/data/builder.kt
+++ b/mirai-core/src/commonMain/kotlin/net.mamoe.mirai/message/data/builder.kt
@@ -67,7 +67,7 @@ class MessageChainBuilder private constructor(
             if (index != -1) {
                 container[index] = element
             } else {
-                add(element)
+                container.add(element)
             }
 
             return true