diff --git a/resources/frontend_client/index_template.html b/resources/frontend_client/index_template.html
index c9bc92994858e12cb945140d9212318ddac1ffea..e37f5957c64bec9b2d7ffa220a7c87359ae2f9cf 100644
--- a/resources/frontend_client/index_template.html
+++ b/resources/frontend_client/index_template.html
@@ -1,5 +1,5 @@
<!DOCTYPE html>
-<html lang="en">
+<html lang="{{{language}}}" translate="no">
<head>
<meta charset="utf-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
diff --git a/src/metabase/server/routes/index.clj b/src/metabase/server/routes/index.clj
index 4c672d012712ff38f2bbf1e2f9553351f3e8c4bf..11119f3f193fb540958edcd868d7d59fd459bae5 100644
--- a/src/metabase/server/routes/index.clj
+++ b/src/metabase/server/routes/index.clj
@@ -77,6 +77,7 @@
:googleAnalyticsJS (load-inline-js "index_ganalytics")
:bootstrapJSON (escape-script (json/generate-string public-settings))
:localizationJSON (escape-script (load-localization))
+ :language (hiccup.util/escape-html (public-settings/site-locale))
:favicon (hiccup.util/escape-html (public-settings/application-favicon-url))
:applicationName (hiccup.util/escape-html (public-settings/application-name))
:uri (hiccup.util/escape-html uri)