diff --git a/host/host.c b/host/host.c
index d5876a7..d6d2cc8 100644
--- a/host/host.c
+++ b/host/host.c
@@ -2,6 +2,7 @@
 #include <string.h>
 #include <stdlib.h>
 #include <time.h>
+#include <sys/time.h>
 #include <unistd.h>
 #include <termios.h>
 #include "uvm32.h"