diff --git a/htdocs/product/card.php b/htdocs/product/card.php
index a54f1d90885..861c46328df 100644
--- a/htdocs/product/card.php
+++ b/htdocs/product/card.php
@@ -1106,11 +1106,11 @@ else
             print "</td></tr>";
         //}
 
-		if($conf->categorie->enabled) {
+		if ($conf->categorie->enabled) {
 			// Categories
 			print '<tr><td>'.$langs->trans("Categories").'</td><td colspan="3">';
 			$cate_arbo = $form->select_all_categories(Categorie::TYPE_PRODUCT, '', 'parent', 64, 0, 1);
-			print $form->multiselectarray('categories', $cate_arbo, $arrayselected, '', 0, '', 0, '100%');
+			print $form->multiselectarray('categories', $cate_arbo, GETPOST('categories', 'array'), '', 0, '', 0, '100%');
 			print "</td></tr>";
 		}
 
@@ -1464,6 +1464,7 @@ else
 				$cate_arbo = $form->select_all_categories(Categorie::TYPE_PRODUCT, '', 'parent', 64, 0, 1);
 				$c = new Categorie($db);
 				$cats = $c->containing($object->id,Categorie::TYPE_PRODUCT);
+				$arrayselected=array();
 				foreach($cats as $cat) {
 					$arrayselected[] = $cat->id;
 				}
diff --git a/htdocs/societe/card.php b/htdocs/societe/card.php
index 9d0a58d3196..e858eaf9a6e 100644
--- a/htdocs/societe/card.php
+++ b/htdocs/societe/card.php
@@ -1893,6 +1893,7 @@ else
 					$cate_arbo = $form->select_all_categories(Categorie::TYPE_CUSTOMER, null, null, null, null, 1);
 					$c = new Categorie($db);
 					$cats = $c->containing($object->id, Categorie::TYPE_CUSTOMER);
+					$arrayselected=array();
 					foreach ($cats as $cat) {
 						$arrayselected[] = $cat->id;
 					}
@@ -1907,6 +1908,7 @@ else
 					$cate_arbo = $form->select_all_categories(Categorie::TYPE_SUPPLIER, null, null, null, null, 1);
 					$c = new Categorie($db);
 					$cats = $c->containing($object->id, Categorie::TYPE_SUPPLIER);
+					$arrayselected=array();
 					foreach ($cats as $cat) {
 						$arrayselected[] = $cat->id;
 					}