diff --git a/app/controllers/personal_books_controller.rb b/app/controllers/personal_books_controller.rb
index 655b843..91d6400 100644
--- a/app/controllers/personal_books_controller.rb
+++ b/app/controllers/personal_books_controller.rb
@@ -34,8 +34,8 @@ class PersonalBooksController < ApplicationController
           end
         when "publish_date", "publication_date"
           pd = ""
-          if !book.publish_date.nil?
-            pd = book.publish_date.strftime("%Y-%m-%d").split('-')
+          if !book.publication_date.nil?
+            pd = book.publication_date.strftime("%Y-%m-%d").split('-')
             pd = pd[0]+"/"+pd[1]
           end
           t << {"value" => pd}
diff --git a/app/models/book.rb b/app/models/book.rb
index 694c99d..7b0a5b6 100644
--- a/app/models/book.rb
+++ b/app/models/book.rb
@@ -110,8 +110,8 @@ class Book
             pd_data << { "data_title" => "<a href='#{OrbitHelper.url_to_plugin_show(p.to_param,'personal_book')}' target='_blank'>#{p.send(t)}</a>" }
           when "publish_date", "publication_date"
             pd = ""
-            if !p.publish_date.nil?
-              pd = p.publish_date.strftime("%Y-%m-%d").split('-')
+            if !p.publication_date.nil?
+              pd = p.publication_date.strftime("%Y-%m-%d").split('-')
               pd = pd[0]+"/"+pd[1]
             end
             pd_data << {"data_title" => pd}