diff --git a/docs/setup/setting-up-site-search.md b/docs/setup/setting-up-site-search.md
index cb77ec600..739db009e 100644
--- a/docs/setup/setting-up-site-search.md
+++ b/docs/setup/setting-up-site-search.md
@@ -102,7 +102,7 @@ The following configuration options are supported:
     ``` yaml
     plugins:
       - search:
-          separator: '[\s\-\.]' # (1)!
+          separator: '[\\s\\-\\.]' # (1)!
     ```
 
     1.  Tokenization itself is carried out by [lunr's default tokenizer], which 
@@ -186,7 +186,7 @@ documents are tokenized:
 ``` yaml
 plugins:
   - search:
-      separator: '[\s\-,:!=\[\]()"/]+|(?!\b)(?=[A-Z][a-z])|\.(?!\d)|&[lg]t;'
+      separator: "[\\s\\-,:!=\\[\\]()\"/]+|\\.(?!\\d)|&[lg]t;|(?!\\b)(?=[A-Z][a-z])"
 ```
 
 The following section explains what can be achieved with tokenizer lookahead:
diff --git a/docs/upgrade.md b/docs/upgrade.md
index b0942b3d6..203fb9450 100644
--- a/docs/upgrade.md
+++ b/docs/upgrade.md
@@ -1119,7 +1119,7 @@ was renamed to `separator`:
     ``` yaml
     plugins:
       - search:
-          separator: '[\s\-\.]+'
+          separator: '[\\s\\-\\.]+'
           lang:
             - en
             - de
@@ -1132,7 +1132,7 @@ was renamed to `separator`:
     extra:
       search:
         language: en, de, ru
-        tokenizer: '[\s\-\.]+'
+        tokenizer: '[\\s\\-\\.]+'
     ```
 
   [plugin options]: setup/setting-up-site-search.md#built-in-search-plugin
diff --git a/material/partials/languages/zh-Hant.html b/material/partials/languages/zh-Hant.html
index 6445f0aa7..ecc06bd73 100644
--- a/material/partials/languages/zh-Hant.html
+++ b/material/partials/languages/zh-Hant.html
@@ -12,7 +12,7 @@
   "meta.source": "來源",
   "search.config.lang": "ja",
   "search.config.pipeline": "trimmer, stemmer",
-  "search.config.separator": "[\，\。]+",
+  "search.config.separator": "[\\，\\。]+",
   "search.placeholder": "搜尋",
   "search.result.initializer": "正在初始化搜尋引擎",
   "search.result.placeholder": "鍵入以開始檢索",
diff --git a/material/partials/languages/zh.html b/material/partials/languages/zh.html
index fc396eb8d..bbc01ae87 100644
--- a/material/partials/languages/zh.html
+++ b/material/partials/languages/zh.html
@@ -16,7 +16,7 @@
   "nav.title": "导航栏",
   "search.config.lang": "ja",
   "search.config.pipeline": "trimmer, stemmer",
-  "search.config.separator": "[\，\。]+",
+  "search.config.separator": "[\\，\\。]+",
   "search.placeholder": "搜索",
   "search.share": "分享",
   "search.reset": "清空当前内容",
diff --git a/src/partials/languages/zh-Hant.html b/src/partials/languages/zh-Hant.html
index c246b391e..e95dff2da 100644
--- a/src/partials/languages/zh-Hant.html
+++ b/src/partials/languages/zh-Hant.html
@@ -32,7 +32,7 @@
   "meta.source": "來源",
   "search.config.lang": "ja",
   "search.config.pipeline": "trimmer, stemmer",
-  "search.config.separator": "[\，\。]+",
+  "search.config.separator": "[\\，\\。]+",
   "search.placeholder": "搜尋",
   "search.result.initializer": "正在初始化搜尋引擎",
   "search.result.placeholder": "鍵入以開始檢索",
diff --git a/src/partials/languages/zh.html b/src/partials/languages/zh.html
index eebcd1a74..fcd1d4990 100644
--- a/src/partials/languages/zh.html
+++ b/src/partials/languages/zh.html
@@ -36,7 +36,7 @@
   "nav.title": "导航栏",
   "search.config.lang": "ja",
   "search.config.pipeline": "trimmer, stemmer",
-  "search.config.separator": "[\，\。]+",
+  "search.config.separator": "[\\，\\。]+",
   "search.placeholder": "搜索",
   "search.share": "分享",
   "search.reset": "清空当前内容",