--- a/src/pyams_portal/zmi/portlet.py	Fri Apr 27 17:13:43 2018 +0200
+++ b/src/pyams_portal/zmi/portlet.py	Fri Apr 27 17:13:54 2018 +0200
@@ -17,7 +17,7 @@
 
 # import interfaces
 from pyams_form.interfaces.form import IInnerTabForm
-from pyams_portal.interfaces import IPortlet, IPortalTemplate, IPortalPage, IPortalContext, MANAGE_TEMPLATE_PERMISSION
+from pyams_portal.interfaces import IPortlet, IPortalTemplate, IPortalPage, MANAGE_TEMPLATE_PERMISSION
 from pyams_skin.layer import IPyAMSLayer
 
 # import packages
@@ -36,7 +36,7 @@
 class PortletSettingsEditor(AdminDialogEditForm):
     """Portlet settings edit form"""
 
-    prefix = 'portlet_properties.'
+    prefix = 'portlet.'
 
     @property
     def title(self):