diff --git a/src/Objects/Ldap/Entry.php b/src/Objects/Ldap/Entry.php
index d21da38..ebecacf 100644
--- a/src/Objects/Ldap/Entry.php
+++ b/src/Objects/Ldap/Entry.php
@@ -49,7 +49,9 @@ private function applyAttributes($attributes)
                         $data = [];
 
                         for ($i = 0; $i <= $attributes[$key]['count']; $i++) {
-                            $data[] = $attributes[$key][$i];
+                            if(isset($attributes[$key][$i])){
+                                $data[] = $attributes[$key][$i];
+                            }
                         }
 
                         $this->setAttribute($key, array_filter($data));