diff --git a/proxy/internal/debug/templates/client_detail.html b/proxy/internal/debug/templates/client_detail.html
index c58e26f6c..8eb27b1e5 100644
--- a/proxy/internal/debug/templates/client_detail.html
+++ b/proxy/internal/debug/templates/client_detail.html
@@ -1,6 +1,6 @@
 {{define "clientDetail"}}
 <!DOCTYPE html>
-<html>
+<html lang="en">
 <head>
   <title>Client {{.AccountID}}</title>
   <style>{{template "style"}}</style>
diff --git a/proxy/internal/debug/templates/clients.html b/proxy/internal/debug/templates/clients.html
index 68f286272..4d455b2bb 100644
--- a/proxy/internal/debug/templates/clients.html
+++ b/proxy/internal/debug/templates/clients.html
@@ -1,6 +1,6 @@
 {{define "clients"}}
 <!DOCTYPE html>
-<html>
+<html lang="en">
 <head>
   <title>Clients</title>
   <style>{{template "style"}}</style>
diff --git a/proxy/internal/debug/templates/index.html b/proxy/internal/debug/templates/index.html
index 7aaff613d..16ab3d979 100644
--- a/proxy/internal/debug/templates/index.html
+++ b/proxy/internal/debug/templates/index.html
@@ -1,6 +1,6 @@
 {{define "index"}}
 <!DOCTYPE html>
-<html>
+<html lang="en">
 <head>
   <title>NetBird Proxy Debug</title>
   <style>{{template "style"}}</style>
diff --git a/proxy/internal/debug/templates/tools.html b/proxy/internal/debug/templates/tools.html
index 091b3e0a1..75cbb6869 100644
--- a/proxy/internal/debug/templates/tools.html
+++ b/proxy/internal/debug/templates/tools.html
@@ -1,6 +1,6 @@
 {{define "tools"}}
 <!DOCTYPE html>
-<html>
+<html lang="en">
 <head>
   <title>Client {{.AccountID}} - Tools</title>
   <style>{{template "style"}}</style>
