diff --git a/rma_sale/models/sale_order_line.py b/rma_sale/models/sale_order_line.py
index df0d6d46..9ffa5400 100644
--- a/rma_sale/models/sale_order_line.py
+++ b/rma_sale/models/sale_order_line.py
@@ -8,6 +8,25 @@ from openerp import api, fields, models
 class SaleOrderLine(models.Model):
     _inherit = "sale.order.line"
 
+    @api.model
+    def name_search(self, name='', args=None, operator='ilike', limit=100):
+        """Allows to search by SO reference."""
+        if not args:
+            args = []
+        args += ['|',
+                 (self._rec_name, operator, name),
+                 ('order_id.name', operator, name)]
+        return super(SaleOrderLine, self).name_search(
+            name=name, args=args, operator=operator, limit=limit)
+
+    @api.model
+    def _name_search(self, name='', args=None, operator='ilike',
+                     limit=100, name_get_uid=None):
+        """Typed text is cleared here for better extensibility."""
+        return super(SaleOrderLine, self)._name_search(
+            name='', args=args, operator=operator, limit=limit,
+            name_get_uid=name_get_uid)
+
     rma_line_id = fields.Many2one(
         comodel_name='rma.order.line', string='RMA', ondelete='restrict')