diff --git a/combo/public/templatetags/combo.py b/combo/public/templatetags/combo.py
index 15d0cd19..41e8c5ab 100644
--- a/combo/public/templatetags/combo.py
+++ b/combo/public/templatetags/combo.py
@@ -249,7 +249,7 @@ def signed(obj):
 
 @register.filter
 def name_id(user):
-    if user:
+    if user and user.is_authenticated():
         user_name_id = user.get_name_id()
         if user_name_id:
             return user_name_id