diff --git a/Request/ParamConverter/PropelParamConverter.php b/Request/ParamConverter/PropelParamConverter.php
index 77e2391..c804d24 100644
--- a/Request/ParamConverter/PropelParamConverter.php
+++ b/Request/ParamConverter/PropelParamConverter.php
@@ -190,7 +190,7 @@ class PropelParamConverter implements ParamConverterInterface
         if (!$this->hasWith) {
             return $query->findOne();
         } else {
-            return $query->find()->first();
+            return $query->find()->getFirst();
         }
     }