diff --git a/lib/redmine_dmsf/hooks/controllers/issues_controller_hooks.rb b/lib/redmine_dmsf/hooks/controllers/issues_controller_hooks.rb
index 1a96363c..5d9b3132 100644
--- a/lib/redmine_dmsf/hooks/controllers/issues_controller_hooks.rb
+++ b/lib/redmine_dmsf/hooks/controllers/issues_controller_hooks.rb
@@ -121,6 +121,39 @@ module RedmineDmsf
                         Rails.logger.error dmsf_link.errors.full_messages.to_sentence
                       end
                     end
+                    issue.descendants.each do |i|
+                      old_system_folder = i.system_folder(false, old_project_id)
+
+                      if old_system_folder
+                      new_main_system_folder = i.main_system_folder(true)
+
+                      if new_main_system_folder
+                          old_system_folder.dmsf_folder_id = new_main_system_folder.id
+                          old_system_folder.project_id = project_id
+
+                          unless old_system_folder.save
+                          controller.flash[:error] = old_system_folder.errors.full_messages.to_sentence
+                          Rails.logger.error old_system_folder.errors.full_messages.to_sentence
+                          end
+
+                          i.dmsf_files.each do |dmsf_file|
+                          dmsf_file.project_id = project_id
+                          unless dmsf_file.save
+                              controller.flash[:error] = dmsf_file.errors.full_messages.to_sentence
+                              Rails.logger.error dmsf_file.errors.full_messages.to_sentence
+                          end
+                          end
+                      end
+
+                      i.dmsf_links.each do | dmsf_link|
+                          dmsf_link.project_id = project_id
+                          unless dmsf_link.save
+                            controller.flash[:error] = dmsf_link.errors.full_messages.to_sentence
+                            Rails.logger.error dmsf_link.errors.full_messages.to_sentence
+                          end
+                      end
+                    end
+                  end
                   end
                 end
               end
@@ -186,4 +219,4 @@ module RedmineDmsf
 
     end
   end
-end
\ No newline at end of file
+end