diff --git a/addons/account/account.py b/addons/account/account.py
index 31ad948360e..a95e6107a68 100644
--- a/addons/account/account.py
+++ b/addons/account/account.py
@@ -1608,8 +1608,8 @@ class account_model_line(osv.osv):
     }
     _order = 'sequence'
     _sql_constraints = [
-        ('credit_debit1', 'CHECK (credit*debit=0)',  'Wrong credit or debit value in model !'),
-        ('credit_debit2', 'CHECK (credit+debit>=0)', 'Wrong credit or debit value in model !'),
+        ('credit_debit1', 'CHECK (credit*debit=0)',  'Wrong credit or debit value in model (Credit Or Debit Must Be "0")!'),
+        ('credit_debit2', 'CHECK (credit+debit>=0)', 'Wrong credit or debit value in model (Credit + Debit Must Be greater "0")!'),
     ]
 account_model_line()