diff --git a/classes/Cart.php b/classes/Cart.php
index 1afc74b67..41a7e1d24 100644
--- a/classes/Cart.php
+++ b/classes/Cart.php
@@ -1591,9 +1591,9 @@ class CartCore extends ObjectModel
 	 */
 	public function getPackageList($flush = false)
 	{
-		static $cache = false;
-		if ($cache !== false && !$flush)
-			return $cache;
+		static $cache = array();
+		if (isset($cache[(int)$this->id]) && $cache[(int)$this->id] !== false && !$flush)
+			return $cache[(int)$this->id];
 
 		$product_list = $this->getProducts();
 		// Step 1 : Get product informations (warehouse_list and carrier_list), count warehouse
@@ -1821,7 +1821,7 @@ class CartCore extends ObjectModel
 						);
 					}
 		}
-		$cache = $final_package_list;
+		$cache[(int)$this->id] = $final_package_list;
 		return $final_package_list;
 	}