diff --git a/test/Model/Consignment/PostNLConsignmentTest.php b/test/Model/Consignment/PostNLConsignmentTest.php
index 8f31edb3..989815d7 100644
--- a/test/Model/Consignment/PostNLConsignmentTest.php
+++ b/test/Model/Consignment/PostNLConsignmentTest.php
@@ -38,7 +38,12 @@ public function providePostNLConsignmentsData(): array
             'Small package' => $this->getDefaultAddress('DE') + [
                 self::PACKAGE_TYPE => AbstractConsignment::PACKAGE_TYPE_PACKAGE_SMALL,
                 self::expected(self::DELIVERY_TYPE) => AbstractConsignment::DELIVERY_TYPE_STANDARD,
-            ]
+            ],
+            'Customs declaration' => $this->getDefaultAddress('CA') + [
+                self::PACKAGE_TYPE => AbstractConsignment::PACKAGE_TYPE_PACKAGE,
+                self::CUSTOMS_DECLARATION => $this->getDefaultCustomsDeclaration(),
+                self::expected(self::DELIVERY_TYPE) => AbstractConsignment::DELIVERY_TYPE_STANDARD,
+                ],
         ]);
     }