diff --git a/arch/sandbox/cpu/os.c b/arch/sandbox/cpu/os.c
index a1d324b..093e7dc 100644
--- a/arch/sandbox/cpu/os.c
+++ b/arch/sandbox/cpu/os.c
@@ -27,6 +27,7 @@
 #include <unistd.h>
 #include <sys/mman.h>
 #include <sys/stat.h>
+#include <sys/time.h>
 #include <sys/types.h>
 #include <linux/types.h>