diff --git a/style/components/datepicker/Calendar.less b/style/components/datepicker/Calendar.less
index 5008798940..3f79d8bb42 100644
--- a/style/components/datepicker/Calendar.less
+++ b/style/components/datepicker/Calendar.less
@@ -141,7 +141,7 @@
     border-radius: 4px 4px;
     width: 20px;
     height: 20px;
-    line-height: 20px;
+    line-height: 18px;
     padding: 0;
     background: transparent;
     text-align: center;