diff --git a/htdocs/core/class/html.form.class.php b/htdocs/core/class/html.form.class.php
index 322337b30f5..b1fd401f277 100644
--- a/htdocs/core/class/html.form.class.php
+++ b/htdocs/core/class/html.form.class.php
@@ -2605,11 +2605,10 @@ class Form
 
 		$sql = "SELECT ";
 
-
 		// Add select from hooks
 		$parameters = array();
 		$reshook = $hookmanager->executeHooks('selectProductsListSelect', $parameters); // Note that $action and $object may have been modified by hook
-		if ($reshook > 0) {
+		if (empty($reshook)) {
 			$sql .= $selectFields.$selectFieldsGrouped.$hookmanager->resPrint;
 		} else {
 			$sql .= $hookmanager->resPrint;