--- a/src/pyams_content/shared/site/manager.py	Fri Mar 22 17:46:49 2019 +0100
+++ b/src/pyams_content/shared/site/manager.py	Fri Mar 22 17:47:03 2019 +0100
@@ -20,9 +20,10 @@
 from zope.schema.fieldproperty import FieldProperty
 from zope.schema.vocabulary import SimpleTerm, SimpleVocabulary
 
+from pyams_content import _
 from pyams_content.component.illustration import IIllustrationTarget, ILinkIllustrationTarget
 from pyams_content.component.paragraph.interfaces import IParagraphFactorySettings
-from pyams_content.component.theme.interfaces import IThemesManagerTarget
+from pyams_content.component.theme.interfaces import ICollectionsManagerTarget, IThemesManagerTarget
 from pyams_content.features.footer.interfaces import IFooterTarget
 from pyams_content.features.header.interfaces import IHeaderTarget
 from pyams_content.features.preview.interfaces import IPreviewTarget
@@ -45,11 +46,9 @@
 from pyams_utils.traversing import get_parent
 from pyams_utils.vocabulary import vocabulary_config
 
-from pyams_content import _
 
-
-@implementer(ISiteManager, IParagraphFactorySettings, IThemesManagerTarget, IPictogramManagerTarget,
-             IIllustrationTarget, ILinkIllustrationTarget, IPortalContext, IHeaderTarget,
+@implementer(ISiteManager, IParagraphFactorySettings, IThemesManagerTarget, ICollectionsManagerTarget,
+             IPictogramManagerTarget, IIllustrationTarget, ILinkIllustrationTarget, IPortalContext, IHeaderTarget,
              IFooterTarget, IPreviewTarget)
 class SiteManager(SiteContainerMixin, OrderedContainer, BaseSharedTool, UserSkinnableContent):
     """Site manager persistent class"""