diff --git a/Assemble.c b/Assemble.c
index a16cafe..e1870fc 100644
--- a/Assemble.c
+++ b/Assemble.c
@@ -683,7 +683,7 @@ int Assemble(struct supertype *st, char *mddev,
 			    > devices[most_recent].i.events)
 				most_recent = devcnt;
 		}
-		if (content->array.level == -4)
+		if (content->array.level == LEVEL_MULTIPATH)
 			/* with multipath, the raid_disk from the superblock is meaningless */
 			i = devcnt;
 		else
@@ -776,7 +776,7 @@ int Assemble(struct supertype *st, char *mddev,
 		/* note: we ignore error flags in multipath arrays
 		 * as they don't make sense
 		 */
-		if (content->array.level != -4)
+		if (content->array.level != LEVEL_MULTIPATH)
 			if (!(devices[j].i.disk.state & (1<<MD_DISK_ACTIVE))) {
 				if (!(devices[j].i.disk.state
 				      & (1<<MD_DISK_FAULTY)))
diff --git a/mdassemble.c b/mdassemble.c
index cf83795..d0d0707 100644
--- a/mdassemble.c
+++ b/mdassemble.c
@@ -28,7 +28,7 @@
 
 /* from readme.c */
 mapping_t pers[] = {
-	{ "linear", -1},
+	{ "linear", LEVEL_LINEAR},
 	{ "raid0", 0},
 	{ "0", 0},
 	{ "stripe", 0},
@@ -39,8 +39,8 @@ mapping_t pers[] = {
 	{ "4", 4},
 	{ "raid5", 5},
 	{ "5", 5},
-	{ "multipath", -4},
-	{ "mp", -4},
+	{ "multipath", LEVEL_MULTIPATH},
+	{ "mp", LEVEL_MULTIPATH},
 	{ "raid6", 6},
 	{ "6", 6},
 	{ "raid10", 10},
diff --git a/util.c b/util.c
index 048c39f..a0e4bcf 100644
--- a/util.c
+++ b/util.c
@@ -261,9 +261,9 @@ int enough(int level, int raid_disks, int layout, int clean,
 		} while (first != 0);
 		return 1;
 
-	case -4:
+	case LEVEL_MULTIPATH:
 		return avail_disks>= 1;
-	case -1:
+	case LEVEL_LINEAR:
 	case 0:
 		return avail_disks == raid_disks;
 	case 1: