diff --git a/scripts/rescan-scsi-bus.sh b/scripts/rescan-scsi-bus.sh
index 16041ee..74d5683 100755
--- a/scripts/rescan-scsi-bus.sh
+++ b/scripts/rescan-scsi-bus.sh
@@ -734,7 +734,12 @@ findremapped()
     remapped=0
     id_serial=`udevadm info -q all -n $sddev | grep "ID_SERIAL=" | cut -d"=" -f2`
     [ -z "$id_serial" ] && id_serial="none"
-    if [ "$id_serial_old" != "$id_serial" ] ; then
+    dm_name=`cat /sys/class/scsi_device/$hctl/device/block/$sddev/holders/*/dm/name 2>/dev/null`
+    [ -z "$dm_name" ] && dm_name=$id_serial
+    if [ "$id_serial_old" != "$id_serial" -o "$id_serial_old" != "$dm_name" ] ; then
+      echo "$hctl id_serial_old=$id_serial_old"
+      echo "$hctl id_serial=$id_serial"
+      echo "$hctl dm_name=$dm_name"
       remapped=1
     fi
     # If udev events updated the disks already, but the multipath device isn't update