diff --git a/crm_claim_rma/models/claim_line.py b/crm_claim_rma/models/claim_line.py
index f91f692d..2e8b6728 100644
--- a/crm_claim_rma/models/claim_line.py
+++ b/crm_claim_rma/models/claim_line.py
@@ -424,9 +424,6 @@ class ClaimLine(models.Model):
 
     @api.multi
     def _get_display_name(self):
-        res = []
         for line_id in self:
-            res.append(
-                (line_id.id, "%s - %s" %
-                    (line_id.claim_id.code, line_id.name)))
-        return res
+            line_id.display_name = "%s - %s" % (
+                line_id.claim_id.code, line_id.name)
diff --git a/crm_claim_rma/tests/test_picking_creation.py b/crm_claim_rma/tests/test_picking_creation.py
index da5c384b..f0bdcf6a 100644
--- a/crm_claim_rma/tests/test_picking_creation.py
+++ b/crm_claim_rma/tests/test_picking_creation.py
@@ -186,3 +186,14 @@ class TestPickingCreation(common.TransactionCase):
         self.assertTrue(res)
         self.assertEquals(res['res_model'], 'account.invoice')
         self.assertEquals(eval(res['context'])['type'], 'out_refund')
+
+    def test_04_display_name(self):
+        """
+        It tests that display_name for each line has a message for it
+        """
+        claim_line_ids = self.env['crm.claim'].browse(
+            self.ref('crm_claim.crm_claim_6'))[0].claim_line_ids
+
+        all_values = sum([bool(line_id.display_name)
+                          for line_id in claim_line_ids])
+        self.assertEquals(len(claim_line_ids), all_values)