diff --git a/combo/profile/models.py b/combo/profile/models.py
index 842adfaa..229b0c64 100644
--- a/combo/profile/models.py
+++ b/combo/profile/models.py
@@ -42,7 +42,7 @@ class ProfileCell(JsonCellBase):
 
     @property
     def url(self):
-        idp = settings.KNOWN_SERVICES.get('authentic').values()[0]
+        idp = list(settings.KNOWN_SERVICES.get('authentic').values())[0]
         return '{%% load combo %%}%sapi/users/{{ concerned_user|name_id }}/' % idp.get('url')
 
     def is_visible(self, user=None):