diff --git a/api/acl.py b/api/acl.py
index 0c336281..ec46ee0c 100644
--- a/api/acl.py
+++ b/api/acl.py
@@ -33,7 +33,7 @@ from django.utils.translation import ugettext as _
 
 def _create_api_permission():
     """Creates the 'use_api' permission if not created.
-    
+
     The 'use_api' is a fake permission in the sense it is not associated with an
     existing model and this ensure the permission is created every time this file
     is imported.
@@ -70,6 +70,7 @@ def can_view(user):
         'app_label': settings.API_CONTENT_TYPE_APP_LABEL,
         'codename': settings.API_PERMISSION_CODENAME
     }
-    can = user.has_perm('%(app_label)s.%(codename)s' % kwargs)
+    permission = '%(app_label)s.%(codename)s' % kwargs
+    can = user.has_perm(permission)
     return can, None if can else _("You don't have the right to see this"
-                                   " application.")
+                                   " application."), (permission,)
diff --git a/cotisations/acl.py b/cotisations/acl.py
index 06c62fb8..1b1611ab 100644
--- a/cotisations/acl.py
+++ b/cotisations/acl.py
@@ -40,7 +40,11 @@ def can_view(user):
     """
     can = user.has_module_perms('cotisations')
     if can:
-        return can, None
+        return can, None, ('cotisations',)
     else:
-        return can, _("You don't have the right to view this application.")
+        return (
+            can,
+            _("You don't have the right to view this application."),
+            ('cotisations',)
+        )
 
diff --git a/machines/acl.py b/machines/acl.py
index 53f70c27..477df6f9 100644
--- a/machines/acl.py
+++ b/machines/acl.py
@@ -39,5 +39,10 @@ def can_view(user):
         viewing is granted and msg is a message (can be None).
     """
     can = user.has_module_perms('machines')
-    return can, None if can else _("You don't have the right to view this"
-                                   " application.")
+    return (
+        can,
+        None if can else _("You don't have the right to view this"
+                                   " application."),
+        ('machines',)
+    )
+
diff --git a/preferences/acl.py b/preferences/acl.py
index d4b22cfe..08bfd8e7 100644
--- a/preferences/acl.py
+++ b/preferences/acl.py
@@ -39,6 +39,10 @@ def can_view(user):
         viewing is granted and msg is a message (can be None).
     """
     can = user.has_module_perms('preferences')
-    return can, None if can else _("You don't have the right to view this"
-                                   " application.")
+    return (
+        can,
+        None if can else _("You don't have the right to view this"
+                                   " application."),
+        ('preferences',)
+    )
 
diff --git a/topologie/acl.py b/topologie/acl.py
index 62e51d8a..2a7227fd 100644
--- a/topologie/acl.py
+++ b/topologie/acl.py
@@ -39,6 +39,10 @@ def can_view(user):
         viewing is granted and msg is a message (can be None).
     """
     can = user.has_module_perms('topologie')
-    return can, None if can else _("You don't have the right to view this"
-                                   " application.")
+    return (
+        can,
+        None if can else _("You don't have the right to view this"
+                                   " application."),
+        ('topologie',)
+    )
 
diff --git a/users/acl.py b/users/acl.py
index cb3a16db..33ad864e 100644
--- a/users/acl.py
+++ b/users/acl.py
@@ -38,6 +38,10 @@ def can_view(user):
         viewing is granted and msg is a message (can be None).
     """
     can = user.has_module_perms('users')
-    return can, None if can else _("You don't have the right to view this"
-                                   " application.")
+    return (
+        can,
+        None if can else _("You don't have the right to view this"
+                                   " application."),
+        ('users',)
+    )