diff --git a/controllers/admin/AdminStockCoverController.php b/controllers/admin/AdminStockCoverController.php
index b2e1e28ad..a40e51586 100644
--- a/controllers/admin/AdminStockCoverController.php
+++ b/controllers/admin/AdminStockCoverController.php
@@ -30,8 +30,8 @@
  */
 class AdminStockCoverControllerCore extends AdminController
 {
-	private $stock_cover_warehouses;
-	private $stock_cover_periods;
+	protected $stock_cover_warehouses;
+	protected $stock_cover_periods;
 
 	public function __construct()
 	{
diff --git a/controllers/admin/AdminStockInstantStateController.php b/controllers/admin/AdminStockInstantStateController.php
index 9b2ab3157..5c2191fd2 100644
--- a/controllers/admin/AdminStockInstantStateController.php
+++ b/controllers/admin/AdminStockInstantStateController.php
@@ -30,7 +30,7 @@
  */
 class AdminStockInstantStateControllerCore extends AdminController
 {
-	private $stock_instant_state_warehouses = array();
+	protected $stock_instant_state_warehouses = array();
 
 	public function __construct()
 	{