diff --git a/server/AyaNova/Controllers/ApiRootController.cs b/server/AyaNova/Controllers/ApiRootController.cs
index b85f7c6d..7e3627c1 100644
--- a/server/AyaNova/Controllers/ApiRootController.cs
+++ b/server/AyaNova/Controllers/ApiRootController.cs
@@ -46,7 +46,7 @@ namespace AyaNova.Api.Controllers
                 errorBlock = $@"<div style=""color: #D8000C;background-color: #FFD2D2""><h2>SERVER ERROR</h2><p>{serverState.Reason}</p></div>";
             }
 
-            var resp = $@"<html lang=""en"">
+            var resp = $@"<!DOCTYPE html><html lang=""en"">
             <head>
             <meta charset=""utf-8"">
             <meta name=""viewport"" content=""width=device-width, initial-scale=1, shrink-to-fit=no"">
