diff --git a/sdk/Dotpay/Loader/Loader.php b/sdk/Dotpay/Loader/Loader.php
index bf897b3..215b7e2 100755
--- a/sdk/Dotpay/Loader/Loader.php
+++ b/sdk/Dotpay/Loader/Loader.php
@@ -247,8 +247,9 @@ private function updateObjects(array $objects)
             } catch (DotpayException $ex) {
             }
             $this->objects[$object->getClass()] = $object;
-            if (!empty($object->getAlias())) {
-                $this->aliases[$object->getAlias()] = $object;
+            $alias = $object->getAlias();
+            if (!empty($alias)) {
+                $this->aliases[$alias] = $object;
             }
         }
     }