diff --git a/components/table/style/index.less b/components/table/style/index.less
index 20a6c5621e..c500f411ea 100644
--- a/components/table/style/index.less
+++ b/components/table/style/index.less
@@ -8,7 +8,7 @@
 @descriptions-prefix-cls: ~'@{ant-prefix}-descriptions';
 @table-header-icon-color: #bfbfbf;
 @table-header-icon-color-hover: darken(@table-header-icon-color, 10%);
-@table-sticky-zindex: (@zindex-table-fixed + 1);
+@table-sticky-zindex: calc(@zindex-table-fixed + 1);
 @table-sticky-scroll-bar-active-bg: fade(@table-sticky-scroll-bar-bg, 80%);
 
 .@{table-prefix-cls}-wrapper {