diff --git a/components/input/style/allow-clear.less b/components/input/style/allow-clear.less
index 57848424d6..5284e0d6b3 100644
--- a/components/input/style/allow-clear.less
+++ b/components/input/style/allow-clear.less
@@ -1,7 +1,7 @@
 @import './index';
 
 // ========================= Input =========================
-.@{ant-prefix}-input-clear-icon.@{iconfont-css-prefix} {
+.@{iconfont-css-prefix}.@{ant-prefix}-input-clear-icon {
   margin: 0 @input-affix-margin;
   color: @disabled-color;
   font-size: @font-size-sm;