diff --git a/Kill.c b/Kill.c
index 29a43ea..b841a5b 100644
--- a/Kill.c
+++ b/Kill.c
@@ -59,6 +59,7 @@ int Kill(char *dev, struct supertype *st, int force, int quiet, int noexcl)
 		close(fd);
 		return 2;
 	}
+	st->ignore_hw_compat = 1;
 	rv = st->ss->load_super(st, fd, dev);
 	if (force && rv >= 2)
 		rv = 0; /* ignore bad data in superblock */
diff --git a/util.c b/util.c
index 55d171a..ce03239 100644
--- a/util.c
+++ b/util.c
@@ -535,6 +535,7 @@ int check_raid(int fd, char *name)
 	struct supertype *st = guess_super(fd);
 
 	if (!st) return 0;
+	st->ignore_hw_compat = 1;
 	st->ss->load_super(st, fd, name);
 	/* Looks like a raid array .. */
 	fprintf(stderr, Name ": %s appears to be part of a raid array:\n",