diff --git a/src/Response/DTO/ParcelShop.php b/src/Response/DTO/ParcelShop.php
index 959cd00..229ff50 100644
--- a/src/Response/DTO/ParcelShop.php
+++ b/src/Response/DTO/ParcelShop.php
@@ -29,7 +29,7 @@ public function addWorkingHours(WorkingHours $workingHours): void
 
     public function getCoordinates(): ?Coordinates
     {
-        return null !== $this->geoLat && null !== $this->geoLong
+        return isset($this->geoLat, $this->geoLong)
             ? new Coordinates($this->geoLat, $this->geoLong)
             : null;
     }