diff --git a/src/Coders/Model/Model.php b/src/Coders/Model/Model.php
index 4ced5798..c6d62a83 100644
--- a/src/Coders/Model/Model.php
+++ b/src/Coders/Model/Model.php
@@ -502,7 +502,12 @@ public function getBaseNamespace()
      */
     public function withParentClass($parent)
     {
-        $this->parentClass = '\\' . ltrim($parent, '\\');
+        $thisParentClass = '\\';
+        if (! is_null($parent)) {
+            $thisParentClass =  $thisParentClass . ltrim($parent, '\\');
+        }
+
+        $this->parentClass = $thisParentClass;
 
         return $this;
     }