diff --git a/app/models/dmsf_folder.rb b/app/models/dmsf_folder.rb
index 52ad3ab7..292aa9b4 100644
--- a/app/models/dmsf_folder.rb
+++ b/app/models/dmsf_folder.rb
@@ -1,5 +1,4 @@
 # encoding: utf-8
-# encoding: utf-8
 #
 # Redmine plugin for Document Management System "Features"
 #
diff --git a/lib/redmine_dmsf/patches/custom_fields_helper_patch.rb b/lib/redmine_dmsf/patches/custom_fields_helper_patch.rb
index 214f7953..b5d0bb1d 100644
--- a/lib/redmine_dmsf/patches/custom_fields_helper_patch.rb
+++ b/lib/redmine_dmsf/patches/custom_fields_helper_patch.rb
@@ -47,5 +47,5 @@ module RedmineDmsf
   end
 end
 
-RedmineExtensions::PatchManager.register_concern_patch 'CustomFieldsHelper',
+RedmineExtensions::PatchManager.register_helper_patch 'CustomFieldsHelper',
     'RedmineDmsf::Patches::CustomFieldsHelperPatch', prepend: true
\ No newline at end of file
diff --git a/lib/redmine_dmsf/patches/projects_helper_patch.rb b/lib/redmine_dmsf/patches/projects_helper_patch.rb
index 44f699b9..43decfe5 100644
--- a/lib/redmine_dmsf/patches/projects_helper_patch.rb
+++ b/lib/redmine_dmsf/patches/projects_helper_patch.rb
@@ -41,5 +41,5 @@ module RedmineDmsf
   end
 end
 
-RedmineExtensions::PatchManager.register_concern_patch 'ProjectsHelper',
+RedmineExtensions::PatchManager.register_helper_patch 'ProjectsHelper',
     'RedmineDmsf::Patches::ProjectHelperPatch', prepend: true
\ No newline at end of file