diff --git a/modules/creditmutuel/browser.py b/modules/creditmutuel/browser.py
index 4ff8dcf9929f2a7e5cf369c765f0f692ef9316e3..42c16c28ffa92a4ef0a17c5ba60dca27e361cdf1 100644
--- a/modules/creditmutuel/browser.py
+++ b/modules/creditmutuel/browser.py
@@ -37,7 +37,7 @@
 from weboob.tools.capabilities.bank.investments import create_french_liquidity
 from weboob.capabilities import NotAvailable
 from weboob.tools.compat import urlparse
-from weboob.capabilities.base import find_object
+from weboob.capabilities.base import find_object, empty
 
 from .pages import (
     LoginPage, LoginErrorPage, AccountsPage, UserSpacePage,
@@ -196,7 +196,7 @@ def ownership_guesser(self):
 
         # Card Accounts should be set with the same ownership of their parents
         for account in self.accounts_list:
-            if account.type == Account.TYPE_CARD:
+            if account.type == Account.TYPE_CARD and not empty(account.parent):
                 account.ownership = account.parent.ownership