diff --git a/src/object.h b/src/object.h
index f5052a8..67706ca 100644
--- a/src/object.h
+++ b/src/object.h
@@ -10,6 +10,7 @@
 #define __OBJECT_H__
 
 #include <iostream>
+#include <memory>
 #include <vector>
 
 #include "basics.h"