diff --git a/sys/lib/hashtable.c b/sys/lib/hashtable.c
index ef64057cb1066c8eb3fb957fefc90b40d233d5f2..80cbba934345b795d7450be229e61d2c9c3ab19a 100755
--- a/sys/lib/hashtable.c
+++ b/sys/lib/hashtable.c
@@ -3,6 +3,7 @@
 #include <stdlib.h>
 #include <stdio.h>
 #include <string.h>
+#include <stdint.h>
 #include <math.h>
 #include "hashtable.h"
 #include "hashtable_private.h"