diff --git a/product/ERP5/Document/Delivery.py b/product/ERP5/Document/Delivery.py
index b84f13164b3b6ac100c83f9f3feeee930270a32f..a1af7e87c8c3fda1aafa272760887a93e0f0223d 100644
--- a/product/ERP5/Document/Delivery.py
+++ b/product/ERP5/Document/Delivery.py
@@ -116,7 +116,7 @@ class Delivery(XMLObject, ImmobilisationDelivery):
 
     security.declareProtected( Permissions.AccessContentsInformation,
                                'getTotalPrice')
-    def getTotalPrice(self, fast=1, src__=0, **kw):
+    def getTotalPrice(self, fast=0, src__=0, **kw):
       """ Returns the total price for this order
         if the `fast` argument is set to a true value, then it use
         SQLCatalog to compute the price, otherwise it sums the total
@@ -139,7 +139,7 @@ class Delivery(XMLObject, ImmobilisationDelivery):
 
     security.declareProtected(Permissions.AccessContentsInformation, 
                               'getTotalQuantity')
-    def getTotalQuantity(self, fast=1, src__=0, **kw):
+    def getTotalQuantity(self, fast=0, src__=0, **kw):
       """ Returns the total quantity of this order.
         if the `fast` argument is set to a true value, then it use
         SQLCatalog to compute the quantity, otherwise it sums the total
diff --git a/product/ERP5/Document/OrderLine.py b/product/ERP5/Document/OrderLine.py
index e4f2e7636d4ee619a162897b4331eee0f9303fea..39be6ed6a929e857d197bd7e4164c68f32e83066 100644
--- a/product/ERP5/Document/OrderLine.py
+++ b/product/ERP5/Document/OrderLine.py
@@ -80,11 +80,13 @@ class OrderLine(DeliveryLine):
         transactional_variable[call_method_key] = result
       return result
 
-    def _getTotalPrice(self, context, fast=1):
-      """
+    def _getTotalPrice(self, context, fast=0):
+      """Returns the total price for this order line.
+
       if hasLineContent: return sum of lines total price
       if hasCellContent: return sum of cells total price
       else: return quantity * price
+      if fast is argument true, then a SQL method will be used.
       """
       base_id = 'movement'
       if self.hasLineContent():
@@ -104,11 +106,13 @@ class OrderLine(DeliveryLine):
 
     security.declareProtected(Permissions.AccessContentsInformation,
                               'getTotalQuantity')
-    def getTotalQuantity(self, fast=1):
-      """
+    def getTotalQuantity(self, fast=0):
+      """Returns the total quantity of this order line.
+
       if hasLineContent: return sum of lines total quantity
       if hasCellContent: return sum of cells total quantity
       else: return quantity
+      if fast argument is true, then a SQL method will be used.
       """
       base_id = 'movement'
       if self.hasLineContent():