diff --git a/src/authentic2_cut/apps.py b/src/authentic2_cut/apps.py
index 9c9af16..adaf9e7 100644
--- a/src/authentic2_cut/apps.py
+++ b/src/authentic2_cut/apps.py
@@ -260,8 +260,7 @@ class AppConfig(django.apps.AppConfig):
                 serializer.fields['email'].read_only = True
             serializer.fields['email'].required = True
             serializer.fields['email_verified'].read_only = True
-            serializer.fields['ou'].write_only = True
-            serializer.fields['ou'].read_only = True
+            serializer.fields['ou'] = serializers.HiddenField(default=serializer.fields['ou'].default)
             del serializer.fields['username']
             del serializer.fields['last_login']