diff --git a/app/controllers/admin/journal_papers_controller.rb b/app/controllers/admin/journal_papers_controller.rb
index 380400b..28d6e46 100644
--- a/app/controllers/admin/journal_papers_controller.rb
+++ b/app/controllers/admin/journal_papers_controller.rb
@@ -46,7 +46,7 @@ class Admin::JournalPapersController < OrbitMemberController
         format.xml  { render :xml => @journal_paper, :status => :created, :location => @journal_paper }
       else
         format.html { render action: 'new' }
-        format.json { render json: @extension.errors, status: :unprocessable_entity }
+        format.json { render json: @journal_paper.errors, status: :unprocessable_entity }
       end
      end
   end
@@ -61,7 +61,7 @@ class Admin::JournalPapersController < OrbitMemberController
         format.xml  { head :ok }
       else
         format.html { render action: "edit" }
-        format.json { render json: @extension.errors, status: :unprocessable_entity }
+        format.json { render json: @journal_paper.errors, status: :unprocessable_entity }
       end
     end
   end