diff --git a/node/Hashtable.hpp b/node/Hashtable.hpp
index 833edb48..00b788b3 100644
--- a/node/Hashtable.hpp
+++ b/node/Hashtable.hpp
@@ -16,6 +16,8 @@
 
 #include "Constants.hpp"
 
+#include <stdlib.h>
+#include <stdio.h>
 #include <vector>
 
 namespace ZeroTier {