diff --git a/AVOS/Sources/Realtime/IM/Message/LCIMMessage.h b/AVOS/Sources/Realtime/IM/Message/LCIMMessage.h
index adf99e58..9ac276cd 100644
--- a/AVOS/Sources/Realtime/IM/Message/LCIMMessage.h
+++ b/AVOS/Sources/Realtime/IM/Message/LCIMMessage.h
@@ -99,11 +99,6 @@ NS_ASSUME_NONNULL_BEGIN
  */
 @property (nonatomic, assign, readonly) int64_t readTimestamp;
 
-/*!
- * 是否是暂态消息
- */
-@property (nonatomic, assign, readonly) BOOL transient;
-
 /*!
  The message update time.
  */