diff --git a/src/calendar/calendar.less b/src/calendar/calendar.less
index 18b91700c..c545acc9e 100644
--- a/src/calendar/calendar.less
+++ b/src/calendar/calendar.less
@@ -12,6 +12,7 @@
 @calendar-item-disabled-color: var(--td-calendar-item-disabled-color, @font-gray-4);
 
 .@{prefix}-calendar {
+  width: inherit;
   position: relative;
   z-index: 9999;
   background: @calendar-bg-color;