diff --git a/config/application.rb b/config/application.rb
index 4e1575a..3ce176a 100644
--- a/config/application.rb
+++ b/config/application.rb
@@ -30,5 +30,7 @@ module Scube
 
     # Do not swallow errors in after_commit/after_rollback callbacks.
     config.active_record.raise_in_transactional_callbacks = true
+
+    config.action_dispatch.default_headers.clear
   end
 end
diff --git a/config/initializers/default_headers.rb b/config/initializers/default_headers.rb
deleted file mode 100644
index 69aa3da..0000000
--- a/config/initializers/default_headers.rb
+++ /dev/null
@@ -1 +0,0 @@
-Rails.application.config.action_dispatch.default_headers.clear