diff --git a/htdocs/bom/tpl/objectline_create.tpl.php b/htdocs/bom/tpl/objectline_create.tpl.php
index 8501f1ca30f..74eb88393df 100644
--- a/htdocs/bom/tpl/objectline_create.tpl.php
+++ b/htdocs/bom/tpl/objectline_create.tpl.php
@@ -113,7 +113,7 @@ if ($conf->global->PRODUCT_USE_UNITS)
 {
     $coldisplay++;
 	print '<td class="nobottom linecoluseunit left">';
-	print $form->selectUnits($line->fk_unit, "units");
+	print $form->selectUnits(empty($line->fk_unit) ? $conf->global->PRODUCT_USE_UNITS : $line->fk_unit, "units");
 	print '</td>';
 }
 
diff --git a/htdocs/core/tpl/objectline_create.tpl.php b/htdocs/core/tpl/objectline_create.tpl.php
index 6d733a76df8..305be25347d 100644
--- a/htdocs/core/tpl/objectline_create.tpl.php
+++ b/htdocs/core/tpl/objectline_create.tpl.php
@@ -362,7 +362,7 @@ if ($nolinesbefore) {
 	if (!empty($conf->global->PRODUCT_USE_UNITS)) {
 		$coldisplay++;
 		print '<td class="nobottom linecoluseunit left">';
-		print $form->selectUnits($line->fk_unit, "units");
+		print $form->selectUnits(empty($line->fk_unit) ? $conf->global->PRODUCT_USE_UNITS : $line->fk_unit, "units");
 		print '</td>';
 	}
 	$remise_percent = $buyer->remise_percent;
diff --git a/htdocs/product/card.php b/htdocs/product/card.php
index 0327456615c..32c50ccb661 100644
--- a/htdocs/product/card.php
+++ b/htdocs/product/card.php
@@ -1107,7 +1107,7 @@ if (is_object($objcanvas) && $objcanvas->displayCanvasExists($action))
 	    {
 		    print '<tr><td>'.$langs->trans('DefaultUnitToShow').'</td>';
 		    print '<td colspan="3">';
-		    print $form->selectUnits('', 'units');
+		    print $form->selectUnits(empty($line->fk_unit) ? $conf->global->PRODUCT_USE_UNITS : $line->fk_unit, 'units');
 		    print '</td></tr>';
 	    }