diff --git a/test/zdtm/live/static/mountpoints.c b/test/zdtm/live/static/mountpoints.c
index 7de2ab183..afe0479d3 100644
--- a/test/zdtm/live/static/mountpoints.c
+++ b/test/zdtm/live/static/mountpoints.c
@@ -92,6 +92,7 @@ done:
 		return 1;
 	}
 
+	unlink("/dev/null");
 	mknod("/dev/null", 0777 | S_IFCHR, makedev(1, 3));
 
 	setup_outfile();