diff --git a/basic_info/admin.py b/basic_info/admin.py
index b829c13..29f8281 100644
--- a/basic_info/admin.py
+++ b/basic_info/admin.py
@@ -113,7 +113,7 @@ class EmployeeAdmin(AdminBase):
 
     def get_readonly_fields(self, request, obj=...):
         result = super().get_readonly_fields(request, obj)
-        result.pop('merchant', None)
+        result.pop('merchant')
         return result