diff --git a/components/message/doc/index.en-US.md b/components/message/doc/index.en-US.md
index 2d1f15a0ed8..bc85e9bfaf4 100644
--- a/components/message/doc/index.en-US.md
+++ b/components/message/doc/index.en-US.md
@@ -64,7 +64,7 @@ Methods for destruction are also provided:
 | nzMaxStack | The maximum number of messages that can be displayed at the same time | `number` | `8` |
 | nzPauseOnHover | Do not remove automatically when mouse is over while setting to `true` | `boolean` | `true` |
 | nzAnimate | Whether to turn on animation | `boolean` | `true` |
-| NzTop | Distance from top | `number` | `24` |
+| nzTop | Distance from top | `number` | `24` |
 
 ### NzMessageDataFilled
 
diff --git a/components/message/doc/index.zh-CN.md b/components/message/doc/index.zh-CN.md
index 62ac7e6c92f..03118a23e1d 100644
--- a/components/message/doc/index.zh-CN.md
+++ b/components/message/doc/index.zh-CN.md
@@ -65,7 +65,7 @@ title: Message
 | nzMaxStack | 同一时间可展示的最大提示数量 | `number` | `8` |
 | nzPauseOnHover | 鼠标移上时禁止自动移除 | `boolean` | `true` |
 | nzAnimate | 开关动画效果 | `boolean` | `true` |
-| NzTop | 消息距离顶部的位置 | `number` | `24` |
+| nzTop | 消息距离顶部的位置 | `number` | `24` |
 
 ### NzMessageDataFilled