diff --git a/test/write_flash.c b/test/write_flash.c
index 382a4a2..ebd0fb7 100644
--- a/test/write_flash.c
+++ b/test/write_flash.c
@@ -77,6 +77,8 @@
 
 	atexit(cleanup);
 
+	mbox_vlog = &mbox_log_console;
+
 	rc = init_flash_dev(context);
 	assert(rc == 0);