diff --git a/htdocs/core/tpl/objectline_create.tpl.php b/htdocs/core/tpl/objectline_create.tpl.php
index f008aacc10e..8c6cf1b9b7a 100644
--- a/htdocs/core/tpl/objectline_create.tpl.php
+++ b/htdocs/core/tpl/objectline_create.tpl.php
@@ -127,7 +127,7 @@ if ($nolinesbefore) {
 		<?php } ?>
 		<td class="linecolqty right"><?php echo $langs->trans('Qty'); ?></td>
 		<?php
-		if (!empty($conf->global->PRODUCT_USE_UNITS)) {
+		if (getDolGlobalInt('PRODUCT_USE_UNITS')) {
 			print '<td class="linecoluseunit left">';
 			print '<span id="title_units">';
 			print $langs->trans('Unit');
@@ -424,7 +424,7 @@ if ($nolinesbefore) {
 	<input type="text" name="qty" id="qty" class="flat width40 right" value="<?php echo (GETPOSTISSET("qty") ? GETPOST("qty", 'alpha', 2) : 1); ?>">
 	</td>
 	<?php
-	if (!empty($conf->global->PRODUCT_USE_UNITS)) {
+	if (getDolGlobalInt('PRODUCT_USE_UNITS')) {
 		$coldisplay++;
 		print '<td class="nobottom linecoluseunit left">';
 		print $form->selectUnits(empty($line->fk_unit) ? $conf->global->PRODUCT_USE_UNITS : $line->fk_unit, "units");