diff --git a/addons/sale/views/report_saleorder.xml b/addons/sale/views/report_saleorder.xml
index 58ac0fb52ba..0b1bd08b76e 100644
--- a/addons/sale/views/report_saleorder.xml
+++ b/addons/sale/views/report_saleorder.xml
@@ -58,7 +58,7 @@
                         <th>Description</th>
                         <th class="text-right">Quantity</th>
                         <th class="text-right">Unit Price</th>
-                        <th class="text-right"><span groups="sale.group_discount_per_so_line">Disc.(%)</span></th>
+                        <th class="text-right" groups="sale.group_discount_per_so_line">Disc.(%)</th>
                         <th class="text-right">Taxes</th>
                         <th class="text-right">Price</th>
                     </tr>