diff --git a/app/controllers/dashboard_controller.rb b/app/controllers/dashboard_controller.rb
index 0f915ab8a..87dbedf1c 100644
--- a/app/controllers/dashboard_controller.rb
+++ b/app/controllers/dashboard_controller.rb
@@ -15,7 +15,7 @@ class DashboardController < ActionController::Base
   private
 
   def ensure_html_format
-    head :not_acceptable unless request.format.html?
+    head :not_acceptable if request.format.json?
   end
 
   def set_global_config