diff --git a/lib/redmine_dmsf.rb b/lib/redmine_dmsf.rb
index 33babe90..c6e6eb41 100644
--- a/lib/redmine_dmsf.rb
+++ b/lib/redmine_dmsf.rb
@@ -42,7 +42,7 @@ require "#{File.dirname(__FILE__)}/redmine_dmsf/patches/search_patch"
 require "#{File.dirname(__FILE__)}/redmine_dmsf/patches/custom_field_patch"
 
 # A workaround for obsolete 'alias_method' usage in RedmineUp's plugins
-if RedmineDmsf::Plugin.an_obsolete_plugin_present?
+if defined?(EasyExtensions) || RedmineDmsf::Plugin.an_obsolete_plugin_present?
   require "#{File.dirname(__FILE__)}/redmine_dmsf/patches/notifiable_ru_patch"
 else
   require "#{File.dirname(__FILE__)}/redmine_dmsf/patches/notifiable_patch"
diff --git a/lib/redmine_dmsf/patches/notifiable_ru_patch.rb b/lib/redmine_dmsf/patches/notifiable_ru_patch.rb
index e5047569..9d3f011f 100644
--- a/lib/redmine_dmsf/patches/notifiable_ru_patch.rb
+++ b/lib/redmine_dmsf/patches/notifiable_ru_patch.rb
@@ -48,6 +48,6 @@ module RedmineDmsf
 end
 
 # Apply the patch
-if !defined?(EasyExtensions) && RedmineDmsf::Plugin.an_obsolete_plugin_present?
+if defined?(EasyExtensions) || RedmineDmsf::Plugin.an_obsolete_plugin_present?
   Redmine::Notifiable.include RedmineDmsf::Patches::NotifiableRuPatch
 end