diff --git a/lib/redmine.rb b/lib/redmine.rb
index 5f01787c2dff6a61f49d2ea106906fde71ccc2e1..0dda94e95df22fd86dc338ccb91347ecf0ae2403 100644
--- a/lib/redmine.rb
+++ b/lib/redmine.rb
@@ -213,9 +213,10 @@ Redmine::MenuManager.map :application_menu do |menu|
   menu.push :time_entries, {:controller => 'timelog', :action => 'index'},
     :if => Proc.new {User.current.allowed_to?(:view_time_entries, nil, :global => true)},
     :caption => :label_spent_time
-  menu.push :gantt, { :controller => 'gantts', :action => 'show' }, :caption => :label_gantt
-  menu.push :calendar, { :controller => 'calendars', :action => 'show' }, :caption => :label_calendar
-
+  menu.push :gantt, { :controller => 'gantts', :action => 'show' }, :caption => :label_gantt,
+    :if => Proc.new {User.current.allowed_to?(:view_gantt, nil, :global => true)}
+  menu.push :calendar, { :controller => 'calendars', :action => 'show' }, :caption => :label_calendar,
+    :if => Proc.new {User.current.allowed_to?(:view_calendar, nil, :global => true)}
   menu.push :news, {:controller => 'news', :action => 'index'},
     :if => Proc.new {User.current.allowed_to?(:view_news, nil, :global => true)},
     :caption => :label_news_plural