diff --git a/frappe/core/doctype/user/user.py b/frappe/core/doctype/user/user.py
index 4f5009b9c8..2524471cf5 100644
--- a/frappe/core/doctype/user/user.py
+++ b/frappe/core/doctype/user/user.py
@@ -184,6 +184,10 @@ class User(Document):
 		if not self.role_profiles:
 			return
 
+		if self.name in STANDARD_USERS:
+			self.role_profiles = []
+			return
+
 		new_roles = set()
 		for role_profile in self.role_profiles:
 			role_profile = frappe.get_cached_doc("Role Profile", role_profile.role_profile)