diff --git a/htdocs/accountancy/admin/productaccount.php b/htdocs/accountancy/admin/productaccount.php
index c8cb62cd7e0..01cf7164009 100644
--- a/htdocs/accountancy/admin/productaccount.php
+++ b/htdocs/accountancy/admin/productaccount.php
@@ -34,7 +34,7 @@ require_once DOL_DOCUMENT_ROOT.'/core/lib/date.lib.php';
 require_once DOL_DOCUMENT_ROOT.'/core/class/html.formaccounting.class.php';
 require_once DOL_DOCUMENT_ROOT.'/accountancy/class/accountingaccount.class.php';
 require_once DOL_DOCUMENT_ROOT.'/product/class/product.class.php';
-if (!empty($conf->categorie->enabled)) {
+if (isModEnabled('categorie')) {
 	require_once DOL_DOCUMENT_ROOT.'/categories/class/categorie.class.php';
 }
 
@@ -42,7 +42,7 @@ if (!empty($conf->categorie->enabled)) {
 $langs->loadLangs(array("companies", "compta", "accountancy", "products"));
 
 // Security check
-if (empty($conf->accounting->enabled)) {
+if (!isModEnabled('accounting')) {
 	accessforbidden();
 }
 if (empty($user->rights->accounting->bind->write)) {
@@ -522,7 +522,7 @@ if ($resql) {
 
 	// Filter on categories
 	$moreforfilter = '';
-	if (!empty($conf->categorie->enabled) && $user->rights->categorie->lire) {
+	if (isModEnabled('categorie') && $user->rights->categorie->lire) {
 		$moreforfilter .= '<div class="divsearchfield">';
 		$moreforfilter .= img_picto($langs->trans('Categories'), 'category', 'class="pictofixedwidth"');
 		$categoriesProductArr = $form->select_all_categories(Categorie::TYPE_PRODUCT, '', '', 64, 0, 1);
@@ -533,7 +533,7 @@ if ($resql) {
 	}
 
 	//Show/hide child products. Hidden by default
-	if (!empty($conf->variants->enabled) && !empty($conf->global->PRODUIT_ATTRIBUTES_HIDECHILD)) {
+	if (isModEnabled('variants') && !empty($conf->global->PRODUIT_ATTRIBUTES_HIDECHILD)) {
 		$moreforfilter .= '<div class="divsearchfield">';
 		$moreforfilter .= '<input type="checkbox" id="search_show_childproducts" name="search_show_childproducts"'.($show_childproducts ? 'checked="checked"' : '').'>';
 		$moreforfilter .= ' <label for="search_show_childproducts">'.$langs->trans('ShowChildProducts').'</label>';