diff --git a/src/libraries/kutil/linked_list.h b/src/libraries/kutil/linked_list.h
index 9b793a5..3331bf3 100644
--- a/src/libraries/kutil/linked_list.h
+++ b/src/libraries/kutil/linked_list.h
@@ -1,6 +1,7 @@
 #pragma once
 /// \file linked_list.h
 /// A generic templatized linked list.
+#include <stddef.h>
 
 namespace kutil {