diff --git a/tests/test.class.NumberBaseCryptCollection.php b/tests/test.class.NumberBaseCryptCollection.php
index 20bf87d..ee2e837 100644
--- a/tests/test.class.NumberBaseCryptCollection.php
+++ b/tests/test.class.NumberBaseCryptCollection.php
@@ -69,7 +69,7 @@ class test extends TestCase {
         foreach($data as $value) {
             $numberBaseCryptCollection->addData($value);
         }
-        $dataCollection = $numberBaseCryptCollection->render();
+        $dataCollection = $numberBaseCryptCollection->renderComplex();
         $digits = $numberBaseCryptCollection->getDigitList();
         $reverse = $numberBaseCryptCollection->decryptComplex($dataCollection, $digits);
         $this->assertEquals($data, $reverse);