diff -uNr hal-0.5.7.1.orig/hald/linux2/blockdev.c hal-0.5.7.1/hald/linux2/blockdev.c
--- hal-0.5.7.1.orig/hald/linux2/blockdev.c	2006-02-24 04:29:06.000000000 +0000
+++ hal-0.5.7.1/hald/linux2/blockdev.c	2006-10-13 00:57:57.000000000 +0100
@@ -493,7 +493,7 @@
 
 	HAL_INFO (("get_luks_uuid: device_file=%s", device_file));
 
-	major = 253; /* FIXME: replace by devmapper constant */
+	major = 254; /* FIXME: replace by devmapper constant */
 	last_elem = hal_util_get_last_element (device_file);
 	if (sscanf (last_elem, "dm-%d", &minor) == 1) {
 		GDir *dir;