diff --git a/currency_rate_update/__openerp__.py b/currency_rate_update/__openerp__.py
index 1cce4f384..9d6396341 100755
--- a/currency_rate_update/__openerp__.py
+++ b/currency_rate_update/__openerp__.py
@@ -75,6 +75,8 @@ If in multi-company mode, the base currency will be the first company's currency
 found in database.
 
 Thanks to main contributors : Grzegorz Grzelak, Alexis de Lattre
+
+
 """,
     "depends" : ["base",
                  "account"], #Added to ensure account security groups are present
diff --git a/currency_rate_update/currency_rate_update.py b/currency_rate_update/currency_rate_update.py
index 1ad031a28..ad216f43d 100755
--- a/currency_rate_update/currency_rate_update.py
+++ b/currency_rate_update/currency_rate_update.py
@@ -98,12 +98,11 @@ class Currency_rate_update_service(osv.osv):
                         ]
 
     def _check_max_delta_days(self, cr, uid, ids):
-        for company in self.read(cr, uid, ids, ['max_delta_days']):
-            if company['max_delta_days'] >= 0:
-                continue
-            else:
-                return False
-        return True
+        for i in ids:
+            value_to_check = self.read(cr, uid, i, ['max_delta_days'])['max_delta_days']
+            if value_to_check >= 0:
+                return True
+            else: return False
 
     _constraints = [
         (_check_max_delta_days, "'Max delta days' must be >= 0", ['max_delta_days']),