diff --git a/awx/ui/client/index.template.ejs b/awx/ui/client/index.template.ejs
index b77b721541..2e9c343f60 100644
--- a/awx/ui/client/index.template.ejs
+++ b/awx/ui/client/index.template.ejs
@@ -1,5 +1,5 @@
 <!DOCTYPE html>
-<html ng-csp="no-unsafe-eval">
+<html lang="en-US" ng-csp="no-unsafe-eval">
 
 <head>
     <meta charset="utf-8">
diff --git a/awx/ui/client/installing.template.ejs b/awx/ui/client/installing.template.ejs
index 2e80ad629c..3c19d76e9d 100644
--- a/awx/ui/client/installing.template.ejs
+++ b/awx/ui/client/installing.template.ejs
@@ -1,5 +1,5 @@
 <!DOCTYPE html>
-<html>
+<html lang="en-US">
   <head>
     {% load staticfiles %}
     <meta charset="utf-8">
diff --git a/awx/ui_next/dist/index.html b/awx/ui_next/dist/index.html
index 8afa7581c8..67e1316467 100644
--- a/awx/ui_next/dist/index.html
+++ b/awx/ui_next/dist/index.html
@@ -1,5 +1,5 @@
 <!DOCTYPE html>
-<html>
+<html lang="en-US">
   <body>
     <div id="app" style="height: 100%"></div>
     <script src="/bundle.js"></script>
