X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/55aafbb07904ca24390dd47ea960eae7cb2b909a..9acc8cb9cd9ca4429712b0d31b647e9a6ecf2d96:/services/api/public/500.html

diff --git a/services/api/public/500.html b/services/api/public/500.html
index c528141e2c..e40a748e4a 100644
--- a/services/api/public/500.html
+++ b/services/api/public/500.html
@@ -3,7 +3,7 @@
 SPDX-License-Identifier: AGPL-3.0 -->
 
 <!DOCTYPE html>
-<html>
+<html lang="en">
 <head>
   <title>We're sorry, but something went wrong (500)</title>
   <style type="text/css">
