diff --git a/src/invidious/views/embed.ecr b/src/invidious/views/embed.ecr
index 8ae46114..93078cdd 100644
--- a/src/invidious/views/embed.ecr
+++ b/src/invidious/views/embed.ecr
@@ -1,5 +1,5 @@
 <!DOCTYPE html>
-<html>
+<html lang="<%= env.get("preferences").as(Preferences).locale %>">
 
 <head>
   <meta charset="utf-8">
diff --git a/src/invidious/views/template.ecr b/src/invidious/views/template.ecr
index 1b8fc292..87a8b950 100644
--- a/src/invidious/views/template.ecr
+++ b/src/invidious/views/template.ecr
@@ -1,5 +1,5 @@
 <!DOCTYPE html>
-<html>
+<html lang="<%= env.get("preferences").as(Preferences).locale %>">
 
 <head>
     <meta charset="utf-8">
