diff -r 7de4aaf90bff -r a75b1fc09fde src/pyams_content/shared/site/interfaces/__init__.py
--- a/src/pyams_content/shared/site/interfaces/__init__.py	Mon Jun 11 16:13:17 2018 +0200
+++ b/src/pyams_content/shared/site/interfaces/__init__.py	Mon Jun 11 16:48:57 2018 +0200
@@ -22,8 +22,8 @@
 from zope.container.interfaces import IContainer, IContained
 
 # import packages
-from pyams_content.shared.common.interfaces import ISharedSite, IWfSharedContent, ISharedContent, \
-    IBaseContentManagerRoles, IBaseSharedTool, IDeletableElement
+from pyams_content.shared.common.interfaces import ISharedSite, ISharedContent, \
+    IBaseContentManagerRoles, IBaseSharedTool, IDeletableElement, IWfSharedContentPortalContext
 from pyams_i18n.schema import I18nTextLineField, I18nTextField
 from zope.container.constraints import containers, contains
 from zope.interface import Interface, Attribute
@@ -95,7 +95,7 @@
 TOPIC_CONTENT_NAME = _("Topic")
 
 
-class IWfTopic(IWfSharedContent):
+class IWfTopic(IWfSharedContentPortalContext):
     """Topic interface"""