diff --git a/rules_shipping_base.php b/rules_shipping_base.php
index 4aa65526bcb64cafd28bf7b2075f8eea038f0ac2..4ffcc520ae7e2dd8ee8b80eadfa7217a4282b04a 100644
--- a/rules_shipping_base.php
+++ b/rules_shipping_base.php
@@ -500,9 +500,9 @@ class plgVmShipmentRules_Shipping_Base extends vmPSPlugin {
 				$dimensions['totalheight'] += $h * $product->quantity;
 				$dimensions['maxheight'] = max ($dimensions['maxheight'], $h);
 				$dimensions['minheight'] = min ($dimensions['minheight'], $h);
-				$dimensions['totalpackaging'] += $product->packaging * $product->quantity;
-				$dimensions['maxpackaging'] = max ($dimensions['maxpackaging'], $product->packaging);
-				$dimensions['minpackaging'] = min ($dimensions['minpackaging'], $product->packaging);
+				$dimensions['totalpackaging'] += $product->product_packaging * $product->quantity;
+				$dimensions['maxpackaging'] = max ($dimensions['maxpackaging'], $product->product_packaging);
+				$dimensions['minpackaging'] = min ($dimensions['minpackaging'], $product->product_packaging);
 			}
 		}