diff --git a/app/helpers/user_helper.rb b/app/helpers/user_helper.rb
index b28f55b9..d38b79a9 100644
--- a/app/helpers/user_helper.rb
+++ b/app/helpers/user_helper.rb
@@ -2,12 +2,13 @@
 
 module UserHelper
   def api_key_qr_code(user)
-    qrcode = RQRCode::QRCode.new(user.api_key)
+    json = { 'server_url' => root_url, 'api_key' => user.api_key }
+    qrcode = RQRCode::QRCode.new(json.to_json)
     svg = qrcode.as_svg(
-      color: "000",
-      fill: "fff",
-      shape_rendering: "crispEdges",
-      module_size: 11,
+      color: '000',
+      fill: 'fff',
+      shape_rendering: 'crispEdges',
+      module_size: 6,
       standalone: true,
       use_path: true,
       offset: 5