diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c
index 5d42adf..c03ca5e 100644
--- a/mm/zsmalloc.c
+++ b/mm/zsmalloc.c
@@ -2,6 +2,7 @@
  * zsmalloc memory allocator
  *
  * Copyright (C) 2011  Nitin Gupta
+ * Copyright (C) 2012, 2013 Minchan Kim
  *
  * This code is released using a dual license strategy: BSD/GPL
  * You can choose the license that better fits your requirements.