--- a/src/pyams_viewlet/manager.py	Mon Jun 11 15:49:48 2018 +0200
+++ b/src/pyams_viewlet/manager.py	Mon Jun 11 15:51:51 2018 +0200
@@ -9,12 +9,14 @@
 # WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
 # FOR A PARTICULAR PURPOSE.
 #
-from pyams_utils.request import check_request
 
 __docformat__ = 'restructuredtext'
 
 
 # import standard packages
+import logging
+logger = logging.getLogger('PyAMS (viewlet)')
+
 import venusian
 
 # import interfaces
@@ -26,6 +28,7 @@
 
 # import packages
 from pyams_template.template import get_view_template
+from pyams_utils.request import check_request
 from pyramid.exceptions import ConfigurationError
 from pyramid.httpexceptions import HTTPUnauthorized
 from pyramid.threadlocal import get_current_registry
@@ -264,6 +267,8 @@
                 provides = settings.get('provides', IViewletManager)
             new_class = ViewletManagerFactory(settings.get('name'), provides, (class_,), cdict)
 
+            logger.debug("Registering viewlet manager {0} ({1})".format(settings.get('name'),
+                                                                        str(new_class)))
             config = context.config.with_package(info.module)
             config.registry.registerAdapter(new_class,
                                             (settings.get('context', Interface),