diff --git a/tests/PHPStan/AnalyseTest.php b/tests/PHPStan/AnalyseTest.php
index 72ac337..c411a63 100644
--- a/tests/PHPStan/AnalyseTest.php
+++ b/tests/PHPStan/AnalyseTest.php
@@ -11,7 +11,7 @@ final class AnalyseTest extends \PHPUnit\Framework\TestCase
 {
     public function testGenerics()
     {
-        $json = '[{"id":1,"firstName":"Lars","lastName":"Moelleken","city":{"name":"Düsseldorf","plz":null,"infos":["lall"]}}, {"id":1,"firstName":"Sven","lastName":"Moelleken","city":{"name":"Köln","plz":null,"infos":["foo"]}}]';
+        $json = '[{"id":1,"firstName":"Lars","lastName":"Moelleken","city":{"name":"Düsseldorf","plz":null,"infos":["lall"]}}, {"id":2,"firstName":"Sven","lastName":"Moelleken","city":{"name":"Köln","plz":null,"infos":["foo"]}}]';
         $userDataCollection = UserDataCollection::createFromJsonMapper($json);
 
         foreach ($userDataCollection as $user) {