diff --git a/opportunity.py b/opportunity.py
index da53d8a..a107291 100644
--- a/opportunity.py
+++ b/opportunity.py
@@ -840,7 +840,6 @@ class CrmOpportunityLine(sequence_ordered(), ModelSQL, ModelView):
             self.total_line = 0
         return self.total_line
 
-
     @fields.depends('unit')
     def on_change_with_unit_digits(self, name=None):
         if self.unit:
@@ -861,7 +860,6 @@ class CrmOpportunityLine(sequence_ordered(), ModelSQL, ModelView):
     # )
     # return sale_line
 
-
     @fields.depends('product', 'unit')
     def on_change_product(self):
         if not self.product:
@@ -882,8 +880,10 @@ class CrmOpportunityLine(sequence_ordered(), ModelSQL, ModelView):
             product=self.product,
             sale=sale,
             description=None,
-            operation_center= self.opportunity.employee.operation_center,
         )
+        # if self.opportunity.employee:
+        #     sale_line.operation_center = self.opportunity.employee.operation_center
+
         sale_line.on_change_product()
         self._set_sale_line_quantity(sale_line)
         sale_line.on_change_quantity()