diff --git a/components/input/style/mixin.less b/components/input/style/mixin.less
index 2dce278278c9..d122c0f52c56 100644
--- a/components/input/style/mixin.less
+++ b/components/input/style/mixin.less
@@ -307,13 +307,14 @@
       float: none;
     }
 
-    // reset border for Select, DatePicker, AutoComplete, Cascader, Mention, TimePicker
+    // reset border for Select, DatePicker, AutoComplete, Cascader, Mention, TimePicker, Input
     & > .@{ant-prefix}-select > .@{ant-prefix}-select-selection,
     & > .@{ant-prefix}-calendar-picker .@{ant-prefix}-input,
     & > .@{ant-prefix}-select-auto-complete .@{ant-prefix}-input,
     & > .@{ant-prefix}-cascader-picker .@{ant-prefix}-input,
     & > .@{ant-prefix}-mention-wrapper .@{ant-prefix}-mention-editor,
-    & > .@{ant-prefix}-time-picker .@{ant-prefix}-time-picker-input {
+    & > .@{ant-prefix}-time-picker .@{ant-prefix}-time-picker-input,
+    & > .@{ant-prefix}-input-group-wrapper .@{ant-prefix}-input {
       border-right-width: @border-width-base;
       border-radius: 0;