diff --git a/app/controllers/subscriptions_controller.rb b/app/controllers/subscriptions_controller.rb
index 3e6fbac9..21321caf 100644
--- a/app/controllers/subscriptions_controller.rb
+++ b/app/controllers/subscriptions_controller.rb
@@ -27,7 +27,7 @@ class SubscriptionsController < ApplicationController
       skip_authorization
       respond_to do |format|
         format.html { redirect_to request_for_comments_url, alert: t('subscriptions.subscription_not_existent') }
-        format.json { head :internal_server_error }
+        format.json { render json: {message: t('subscriptions.subscription_not_existent')}, status: :not_found }
       end
     else
       authorize!
@@ -35,12 +35,12 @@ class SubscriptionsController < ApplicationController
       if @subscription.destroy
         respond_to do |format|
           format.html { redirect_to request_for_comment_url(rfc), notice: t('subscriptions.successfully_unsubscribed') }
-          format.json { head :destroyed }
+          format.json { render json: {message: t('subscriptions.successfully_unsubscribed')}, status: :ok}
         end
       else
         respond_to do |format|
           format.html { redirect_to request_for_comment_url(rfc), :flash => { :danger => t('shared.message_failure') } }
-          format.json { head :internal_server_error }
+          format.json { render json: {message: t('shared.message_failure')}, status: :internal_server_error}
         end
       end
     end