diff --git a/super-ddf.c b/super-ddf.c
index dba5970..141731a 100644
--- a/super-ddf.c
+++ b/super-ddf.c
@@ -2974,18 +2974,23 @@ static struct mdinfo *container_content_ddf(struct supertype *st)
 		for (i = 0 ; i < ddf->mppe ; i++) {
 			struct mdinfo *dev;
 			struct dl *d;
+			int stt;
 
 			if (vc->conf.phys_refnum[i] == 0xFFFFFFFF)
 				continue;
 
-			this->array.working_disks++;
-
 			for (d = ddf->dlist; d ; d=d->next)
 				if (d->disk.refnum == vc->conf.phys_refnum[i])
 					break;
 			if (d == NULL)
 				/* Haven't found that one yet, maybe there are others */
 				continue;
+			stt = __be16_to_cpu(ddf->phys->entries[d->pdnum].state);
+			if ((stt & (DDF_Online|DDF_Failed|DDF_Rebuilding))
+			    != DDF_Online)
+				continue;
+
+			this->array.working_disks++;
 
 			dev = malloc(sizeof(*dev));
 			memset(dev, 0, sizeof(*dev));