diff --git a/docs/source/_data/sidebar.yml b/docs/source/_data/sidebar.yml
index 067adc729..5560631ec 100644
--- a/docs/source/_data/sidebar.yml
+++ b/docs/source/_data/sidebar.yml
@@ -28,6 +28,7 @@ filters:
   capitalize: capitalize.html
   ceil: ceil.html
   compact: compact.html
+  concat: concat.html
   date: date.html
   default: default.html
   divided_by: divided_by.html
@@ -65,7 +66,6 @@ filters:
   truncate: truncate.html
   truncatewords: truncatewords.html
   uniq: uniq.html
-  concat: concat.html
   upcase: upcase.html
   url_decode: url_decode.html
   url_encode: url_encode.html
diff --git a/docs/source/zh-cn/filters/overview.md b/docs/source/zh-cn/filters/overview.md
index 4dbbe8f44..8d61f64bb 100644
--- a/docs/source/zh-cn/filters/overview.md
+++ b/docs/source/zh-cn/filters/overview.md
@@ -11,7 +11,7 @@ LiquidJS 共支持 40+ 个过滤器，可以分为如下几类：
 数学 | plus, minus, modulo, times, floor, ceil, round, divided_by, abs
 字符串 | append, prepend, capitalize, upcase, downcase, strip, lstrip, rstrip, strip_newlines, split, replace, replace_first, remove, remove_first, truncate, truncatewords
 HTML/URI | escape, escape_once, url_encode, url_decode, strip_html, newline_to_br
-数组 | slice, map, sort, sort_natural, uniq, wheres, first, last, join, reverse
+数组 | slice, map, sort, sort_natural, uniq, wheres, first, last, join, reverse, concat
 日期 | date
 
 [shopify/liquid]: https://github.com/Shopify/liquid