diff --git a/aircox/permissions.py b/aircox/permissions.py
index a26efb9..72e1c86 100644
--- a/aircox/permissions.py
+++ b/aircox/permissions.py
@@ -23,6 +23,7 @@ class PagePermissions:
     """Format used for permission name (displayed to humans)."""
     perms_codename_format = "{obj._meta.label_lower}_{obj.pk}_{perm}"
     """Format used for permissions codename."""
+    perms_cn_format = "{obj._meta.model_name}_{obj.pk}_{perm}"
 
     def __init__(self, model):
         self.model = model
@@ -78,7 +79,7 @@ class PagePermissions:
         # TODO: avoid multiple database hits
         for name in infos["perms"]:
             perm, _ = Permission.objects.get_or_create(
-                codename=self.perms_codename_format.format(obj=obj, perm=name),
+                codename=self.perms_cn_format.format(obj=obj, perm=name),
                 content_type=ContentType.objects.get_for_model(obj),
                 defaults={"name": self.perms_name_format.format(obj=obj, perm=name)},
             )