Controller should not be a read-only field of ControllerUserInline
diff --git a/xos/core/admin.py b/xos/core/admin.py
index 910ee97..44fa06c 100644
--- a/xos/core/admin.py
+++ b/xos/core/admin.py
@@ -1554,7 +1554,6 @@
     extra = 0
     suit_classes = 'suit-tab suit-tab-admin-only'
     fields = ['controller', 'user', 'kuser_id']
-    readonly_fields=['controller']
 
 
 class UserAdmin(XOSAdminMixin, UserAdmin):