diff --git a/src/css/widget/numberinterval/numberinterval.css b/src/css/widget/numberinterval/numberinterval.css
index 206f185973..db820c6703 100644
--- a/src/css/widget/numberinterval/numberinterval.css
+++ b/src/css/widget/numberinterval/numberinterval.css
@@ -1,3 +1,8 @@
+.bi-number-interval.hack {
+  -webkit-border-radius: 0px;
+  -moz-border-radius: 0px;
+  border-radius: 0px;
+}
 .bi-number-interval .number-interval-small-editor {
   -moz-border-radius-topleft: 2px;
   -webkit-border-top-left-radius: 2px;
diff --git a/src/less/widget/numberinterval/numberinterval.less b/src/less/widget/numberinterval/numberinterval.less
index 7e16ae3ca8..811caf6795 100644
--- a/src/less/widget/numberinterval/numberinterval.less
+++ b/src/less/widget/numberinterval/numberinterval.less
@@ -1,6 +1,9 @@
 @import "../../index";
 
 .bi-number-interval {
+  &.hack {
+    .border-radius(0px);
+  }
   & .number-interval-small-editor {
     .border-corner-left-radius(2px, 2px);
   }
diff --git a/src/widget/numberinterval/numberinterval.js b/src/widget/numberinterval/numberinterval.js
index 9d13785736..74033ec71c 100644
--- a/src/widget/numberinterval/numberinterval.js
+++ b/src/widget/numberinterval/numberinterval.js
@@ -23,7 +23,7 @@ BI.NumberInterval = BI.inherit(BI.Single, {
     _defaultConfig: function () {
         var conf = BI.NumberInterval.superclass._defaultConfig.apply(this, arguments);
         return BI.extend(conf, {
-            extraCls: "bi-number-interval",
+            extraCls: "bi-number-interval" + (BI.isIE() && BI.getIEVersion() < 10) ? " hack" : "",
             height: 24,
             validation: "valid",
             closeMin: true,