diff --git a/assets/search-data.js b/assets/search-data.js
index a3fd51b..9c7f6a9 100644
--- a/assets/search-data.js
+++ b/assets/search-data.js
@@ -2,8 +2,10 @@
 
 (function() {
   const indexCfg = {{ with .Site.Params.BookSearchConfig }}
-    {{ . }}
-  {{ end }};
+    {{ . }};
+  {{ else }}
+   {};
+  {{ end }}
 
   indexCfg.doc = {
     id: 'id',
diff --git a/assets/search.js b/assets/search.js
index 89302b1..f21d4bf 100644
--- a/assets/search.js
+++ b/assets/search.js
@@ -1,6 +1,8 @@
 'use strict';
 
-{{- $searchData := resources.Get "search-data.js" | resources.ExecuteAsTemplate "search-data.js" . | resources.Minify | resources.Fingerprint }}
+{{ $searchDataFile := printf "%s.%s" .Language.Lang "search-data.js" }}
+{{ $searchData := resources.Get "search-data.js" | resources.ExecuteAsTemplate $searchDataFile . | resources.Minify | resources.Fingerprint }}
+
 (function() {
   const input = document.querySelector('#book-search-input');
   const results = document.querySelector('#book-search-results');
diff --git a/exampleSite/config.toml b/exampleSite/config.toml
index db2bb08..96e8165 100644
--- a/exampleSite/config.toml
+++ b/exampleSite/config.toml
@@ -17,15 +17,17 @@ pygmentsCodeFences = true
 defaultContentLanguage = 'en'
 
 [languages]
-  [languages.en]
-    languageName = 'English'
-    weight = 1
-  [languages.ru]
-    languageName = 'Russian'
-    weight = 2
-  [languages.cn]
-    languageName = 'Chinese'
-    weight = 3
+[languages.en]
+  languageName = 'English'
+  weight = 1
+
+[languages.ru]
+  languageName = 'Russian'
+  weight = 2
+
+[languages.cn]
+  languageName = 'Chinese'
+  weight = 3
 
 [params]
   # (Optional, default 6) Set how many table of contents levels to be showed on page.
@@ -63,7 +65,7 @@ defaultContentLanguage = 'en'
   # Index is built on fly, therefore it might slowdown your website.
   BookSearch = true
 
-  # (Optional, default none) Search config for flexsearch index.
+  # (Optional, default {}) Search config for flexsearch index.
   # Read documentation at https://github.com/nextapps-de/flexsearch#usage. By default 'balance' preset is used.
   # This option allows to set specific configs for languages support. Must be valid JavaScript object.
   BookSearchConfig = '{ cache: true }'
diff --git a/exampleSite/config.yaml b/exampleSite/config.yaml
index 720d5d3..6db35ed 100644
--- a/exampleSite/config.yaml
+++ b/exampleSite/config.yaml
@@ -63,7 +63,7 @@ params:
   # Index is built on fly, therefore it might slowdown your website.
   BookSearch: true
 
-  # (Optional, default none) Search config for flexsearch index.
+  # (Optional, default {}) Search config for flexsearch index.
   # Read documentation at https://github.com/nextapps-de/flexsearch#usage. By default 'balance' preset is used.
   # This option allows to set specific configs for languages support. Must be valid JavaScript object.
   BookSearchConfig: |
diff --git a/layouts/partials/docs/html-head.html b/layouts/partials/docs/html-head.html
index 28815a1..c3a692f 100644
--- a/layouts/partials/docs/html-head.html
+++ b/layouts/partials/docs/html-head.html
@@ -10,7 +10,8 @@
 <link rel="stylesheet" href="{{ $styles.RelPermalink }}" integrity="{{ $styles.Data.Integrity }}">
 
 {{ if default true .Site.Params.BookSearch }}
-{{- $searchJS := resources.Get "search.js" | resources.ExecuteAsTemplate "search.js" . | resources.Minify | resources.Fingerprint }}
+{{- $searchJSFile := printf "%s.%s" .Language.Lang "search.js" -}}
+{{- $searchJS := resources.Get "search.js" | resources.ExecuteAsTemplate $searchJSFile . | resources.Minify | resources.Fingerprint }}
 <script defer src="{{ $searchJS.RelPermalink }}" integrity="{{ $searchJS.Data.Integrity }}"></script>
 {{ end }}