--- a/src/pyams_content/component/extfile/interfaces/__init__.py	Wed Jun 13 08:55:06 2018 +0200
+++ b/src/pyams_content/component/extfile/interfaces/__init__.py	Wed Jun 13 08:56:05 2018 +0200
@@ -16,7 +16,7 @@
 # import standard library
 
 # import interfaces
-from pyams_content.component.association.interfaces import IAssociationItem, IAssociationTarget
+from pyams_content.component.association.interfaces import IAssociationItem, IAssociationContainerTarget
 
 # import packages
 from pyams_i18n.schema import I18nTextLineField, I18nTextField, I18nFileField, I18nThumbnailImageField, \
@@ -91,5 +91,5 @@
                           required=True)
 
 
-class IExtFileContainerTarget(IAssociationTarget):
+class IExtFileContainerTarget(IAssociationContainerTarget):
     """External files container marker interface"""