diff --git a/src/core/wrapper/layout/adapt/float.horizontal.js b/src/core/wrapper/layout/adapt/float.horizontal.js
index 87b69e667..77667c0ac 100644
--- a/src/core/wrapper/layout/adapt/float.horizontal.js
+++ b/src/core/wrapper/layout/adapt/float.horizontal.js
@@ -1,5 +1,5 @@
 /**
  * 浮动的水平居中布局
  */
-BI.FloatHorizontalLayout = {};
+BI.FloatHorizontalLayout = BI.Layout;
 BI.shortcut("bi.horizontal_float", BI.FloatHorizontalLayout);