diff --git a/docs/api/component/control.zh.md b/docs/api/component/control.zh.md
index a824506d78..82cb7588ab 100644
--- a/docs/api/component/control.zh.md
+++ b/docs/api/component/control.zh.md
@@ -61,7 +61,7 @@ scene.addControl(scaleControl);
 
 option 控件配置项
 overlayers 将一组图层添加到图层列表
-overlayers  Object
+overlayers Object
 key: 列表显示的图层名字可以自定义
 layer: 图层对象
 overlayers 示例