--- a/src/pyams_workflow/zmi/workflow.py	Thu Oct 08 11:36:22 2015 +0200
+++ b/src/pyams_workflow/zmi/workflow.py	Thu Oct 08 11:37:30 2015 +0200
@@ -16,9 +16,10 @@
 # import standard library
 
 # import interfaces
+from pyams_skin.interfaces.viewlet import IToolbarViewletManager
 from pyams_i18n.interfaces import II18n
-from pyams_skin.interfaces.viewlet import IToolbarViewletManager
 from pyams_skin.layer import IPyAMSLayer
+from pyams_utils.interfaces import VIEW_SYSTEM_PERMISSION
 from pyams_workflow.interfaces import IWorkflow, IWorkflowInfo, IWorkflowVersion, IWorkflowManagedContent, \
     IWorkflowVersions, IWorkflowState
 from pyams_workflow.zmi.interfaces import IWorkflowMenu
@@ -56,8 +57,8 @@
         self.modal_target = True
 
 
-@viewlet_config(name='workflow.menu', view=Interface, layer=IAdminLayer, context=IWorkflowVersion,
-                manager=IToolbarViewletManager, weight=800)
+@viewlet_config(name='workflow.menu', context=IWorkflowVersion, layer=IAdminLayer,
+                view=Interface, manager=IToolbarViewletManager, weight=800)
 @viewletmanager_config(name='workflow.menu', layer=IAdminLayer, provides=IWorkflowMenu)
 @implementer(IWorkflowMenu)
 class WorkflowMenu(ToolbarMenu):
@@ -115,7 +116,7 @@
 
 
 @view_config(name='get-old-versions.html', context=IContainer, request_type=IPyAMSLayer,
-             permission='system.view', xhr=True)
+             permission=VIEW_SYSTEM_PERMISSION, xhr=True)
 def get_old_versions(request):
     """Get old_versions of template"""
     container = request.context