diff --git a/.gitignore b/.gitignore
index 8619e09..884de1f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 .bundle/
 log/*.log
 pkg/
+.idea
diff --git a/app/controllers/concerns/api/uploadable.rb b/app/controllers/concerns/api/uploadable.rb
index 167fb19..d25a76d 100644
--- a/app/controllers/concerns/api/uploadable.rb
+++ b/app/controllers/concerns/api/uploadable.rb
@@ -19,7 +19,7 @@ def upload
 
       if errors.empty?
         serializer = serializer_class.new
-        render json: { controller_name.to_sym => items.map{ |i| serializer.render_index(i) } }, status: :ok
+        render json: { controller_name.to_sym => serializer.render_index(items) }, status: :ok
       else
         render json: { errors: errors }, status: 422
       end