diff --git a/htdocs/bom/tpl/objectline_view.tpl.php b/htdocs/bom/tpl/objectline_view.tpl.php
index b03d488e1b0..1bf02f13cad 100644
--- a/htdocs/bom/tpl/objectline_view.tpl.php
+++ b/htdocs/bom/tpl/objectline_view.tpl.php
@@ -184,6 +184,12 @@ if ($filtertype != 1) {
 		print '<td class="linecolworkstation nowrap">';
 		$coldisplay++;
 		if ($res > 0) {
+			$unit = new CUnits($object->db);
+			$fk_defaultUnit = $unit->getUnitFromCode('h', 'short_label', 'time');
+			$nbPlannedHour = $unit->unitConverter($line->qty, $line->fk_unit, $fk_defaultUnit);
+			$line->total_cost = 0;
+			if ($workstation->thm_machine_estimated) $line->total_cost += $nbPlannedHour * $workstation->thm_machine_estimated;
+			if ($workstation->thm_operator_estimated) $line->total_cost += $nbPlannedHour * $workstation->thm_operator_estimated;
 			echo $workstation->getNomUrl(1);
 		}
 		print '</td>';
@@ -192,6 +198,7 @@ if ($filtertype != 1) {
 
 // Cost
 $total_cost = 0;
+
 $tmpbom->calculateCosts();
 print '<td id="costline_'.$line->id.'" class="linecolcost nowrap right">';
 $coldisplay++;