diff --git a/src/Dto2DataConverter.php b/src/Dto2DataConverter.php
index 82ddd55..a20775f 100644
--- a/src/Dto2DataConverter.php
+++ b/src/Dto2DataConverter.php
@@ -216,14 +216,14 @@ class Dto2DataConverter
 
     private function getValue(object $object, \ReflectionProperty $property)
     {
-        if (!$property->isInitialized($object)) {
-            return null;
-        }
-
         if (!$property->isPublic()) {
             $property->setAccessible(true);
         }
 
+        if (!$property->isInitialized($object)) {
+            return null;
+        }
+
         $value = $property->getValue($object);
 
         if (!$property->isPublic()) {