diff --git a/netforce_clinic/models/hd_case.py b/netforce_clinic/models/hd_case.py
index a05c526..7a615a4 100644
--- a/netforce_clinic/models/hd_case.py
+++ b/netforce_clinic/models/hd_case.py
@@ -293,7 +293,6 @@ class HDcase(Model):
     def make_invoices(self,ids,context={}):
         setting=get_model("settings").browse(1)
         currency_id=setting.currency_id.id
-        #
         account_receivable_id=setting.account_receivable_id.id
         company_id=get_active_company()
         uom=get_model("uom").search_browse([['name','ilike','%Unit%']])
@@ -353,8 +352,7 @@ class HDcase(Model):
                 "company_id": company_id,
             }
             vals["partner_id"]=obj.fee_partner_id.id
-            # XXX
-            if obj.fee_partner_id.account_receivable_id:
+            if not obj.fee_partner_id.account_receivable_id:
                 account_id=obj.fee_partner_id.account_receivable_id.id or account_receivable_id
                 if not account_id:
                     raise Exception("%s not found account recievable %s"%obj.fee_partner_id.name)