diff --git a/fs/partitions/mac.c b/fs/partitions/mac.c
index d4a0fad..dece9b4 100644
--- a/fs/partitions/mac.c
+++ b/fs/partitions/mac.c
@@ -75,7 +75,7 @@
 			be32_to_cpu(part->block_count) * (secsize/512));
 
 		if (!strnicmp(part->type, "Linux_RAID", 10))
-			state->parts[slot].flags = 1;
+			state->parts[slot].flags = ADDPART_FLAG_RAID;
 #ifdef CONFIG_PPC_PMAC
 		/*
 		 * If this is the first bootable partition, tell the