diff --git a/src/tools/fsync/test_fsync.c b/src/tools/fsync/test_fsync.c
index cbeed45a65..3905d2b157 100644
--- a/src/tools/fsync/test_fsync.c
+++ b/src/tools/fsync/test_fsync.c
@@ -10,6 +10,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <time.h>
+#include <sys/time.h>
 #include <unistd.h>
 
 /* O_SYNC and O_FSYNC are the same */