diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 0621ab90b1a502bc82f829922a75238b598cb292..abb27332c914a537f052619fb28548cfd0dedea4 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -39,7 +39,7 @@ extern struct kmem_cache *btrfs_bit_radix_cachep;
 extern struct kmem_cache *btrfs_path_cachep;
 struct btrfs_ordered_sum;
 
-#define BTRFS_MAGIC "_BBRfS_M"
+#define BTRFS_MAGIC "_BCRfS_M"
 
 #define BTRFS_ACL_NOT_CACHED    ((void *)-1)