diff --git a/material/partials/languages/el.html b/material/partials/languages/el.html
index 559cd5c0d..6b02eaf50 100644
--- a/material/partials/languages/el.html
+++ b/material/partials/languages/el.html
@@ -15,7 +15,6 @@
   "meta.source": "Πηγή",
   "nav.title": "Πλοήγηση",
   "search.config.pipeline": "stopWordFilter",
-  "search.config.separator": "[\s\-]+",
   "search.placeholder": "Αναζήτηση",
   "search.share": "Διαμοίραση",
   "search.reset": "Καθαρισμός",
diff --git a/material/partials/languages/en.html b/material/partials/languages/en.html
index 18209d73a..c2260197c 100644
--- a/material/partials/languages/en.html
+++ b/material/partials/languages/en.html
@@ -16,7 +16,7 @@
   "nav.title": "Navigation",
   "search.config.lang": "en",
   "search.config.pipeline": "trimmer, stopWordFilter",
-  "search.config.separator": "[\s\-]+",
+  "search.config.separator": "[\\s\\-]+",
   "search.placeholder": "Search",
   "search.share": "Share",
   "search.reset": "Clear",
diff --git a/material/partials/languages/ja.html b/material/partials/languages/ja.html
index 14120bda3..6a7203b0c 100644
--- a/material/partials/languages/ja.html
+++ b/material/partials/languages/ja.html
@@ -15,7 +15,7 @@
   "nav.title": "ナビゲーション",
   "search.config.lang": "ja",
   "search.config.pipeline": "trimmer, stemmer",
-  "search.config.separator": "[\s\-　、。，．]+",
+  "search.config.separator": "[\\s\\-　、。，．]+",
   "search.placeholder": "検索",
   "search.reset": "クリア",
   "search.result.initializer": "検索を初期化",
diff --git a/material/partials/languages/zh-TW.html b/material/partials/languages/zh-TW.html
index 48e3be3d2..503c75cbe 100644
--- a/material/partials/languages/zh-TW.html
+++ b/material/partials/languages/zh-TW.html
@@ -12,7 +12,7 @@
   "meta.source": "來源",
   "search.config.lang": "ja",
   "search.config.pipeline": "trimmer, stemmer",
-  "search.config.separator": "[\s\-　、。，．？；]+",
+  "search.config.separator": "[\\s\\-　、。，．？；]+",
   "search.placeholder": "搜尋",
   "search.result.initializer": "正在初始化搜尋引擎",
   "search.result.placeholder": "打字進行搜尋",
diff --git a/src/partials/languages/el.html b/src/partials/languages/el.html
index f52236210..cb6224585 100644
--- a/src/partials/languages/el.html
+++ b/src/partials/languages/el.html
@@ -35,7 +35,6 @@
   "meta.source": "Πηγή",
   "nav.title": "Πλοήγηση",
   "search.config.pipeline": "stopWordFilter",
-  "search.config.separator": "[\s\-]+",
   "search.placeholder": "Αναζήτηση",
   "search.share": "Διαμοίραση",
   "search.reset": "Καθαρισμός",
diff --git a/src/partials/languages/en.html b/src/partials/languages/en.html
index eb0ef75e7..ffe0b3486 100644
--- a/src/partials/languages/en.html
+++ b/src/partials/languages/en.html
@@ -36,7 +36,7 @@
   "nav.title": "Navigation",
   "search.config.lang": "en",
   "search.config.pipeline": "trimmer, stopWordFilter",
-  "search.config.separator": "[\s\-]+",
+  "search.config.separator": "[\\s\\-]+",
   "search.placeholder": "Search",
   "search.share": "Share",
   "search.reset": "Clear",
diff --git a/src/partials/languages/ja.html b/src/partials/languages/ja.html
index bb12fb2fc..256307d2f 100644
--- a/src/partials/languages/ja.html
+++ b/src/partials/languages/ja.html
@@ -35,7 +35,7 @@
   "nav.title": "ナビゲーション",
   "search.config.lang": "ja",
   "search.config.pipeline": "trimmer, stemmer",
-  "search.config.separator": "[\s\-　、。，．]+",
+  "search.config.separator": "[\\s\\-　、。，．]+",
   "search.placeholder": "検索",
   "search.reset": "クリア",
   "search.result.initializer": "検索を初期化",
diff --git a/src/partials/languages/zh-TW.html b/src/partials/languages/zh-TW.html
index 7f92b3b30..e6c2e6456 100644
--- a/src/partials/languages/zh-TW.html
+++ b/src/partials/languages/zh-TW.html
@@ -32,7 +32,7 @@
   "meta.source": "來源",
   "search.config.lang": "ja",
   "search.config.pipeline": "trimmer, stemmer",
-  "search.config.separator": "[\s\-　、。，．？；]+",
+  "search.config.separator": "[\\s\\-　、。，．？；]+",
   "search.placeholder": "搜尋",
   "search.result.initializer": "正在初始化搜尋引擎",
   "search.result.placeholder": "打字進行搜尋",