diff --git a/src/authentic2_cut/apps.py b/src/authentic2_cut/apps.py
index 720f63d..d459e00 100644
--- a/src/authentic2_cut/apps.py
+++ b/src/authentic2_cut/apps.py
@@ -413,7 +413,7 @@ class AppConfig(django.apps.AppConfig):
                     excluded = AttributeValue.objects.filter(
                         attribute__name='birthdate',
                         content__gt=before)
-                    queryset = queryset.exclude(attribute_values=excluded)
+                    queryset = queryset.exclude(attribute_values__in=excluded)
                 queryset = queryset.filter(ou__slug='usagers')
             return queryset