diff --git a/style/components/inputNumber.less b/style/components/inputNumber.less
index f9b1ce227475a29c6e54fa323ebdb63d663e7aed..de9e6f8b7c5f20aca06bcb934cf7679be814a139 100644
--- a/style/components/inputNumber.less
+++ b/style/components/inputNumber.less
@@ -92,8 +92,7 @@
       top: 2px;
       &:before {
         content: "\e600";
-        filter: progid:DXImageTransform.Microsoft.BasicImage(rotation=2);
-        -ms-transform: rotate(180deg);
+        .ie-rotate(2);
         transform: rotate(180deg);
       }
     }