diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index d5ba3d1aaf9aa6f0074fdc259a5f72c2902625ba..689df070c8e9cc6aebb0e3aa204544efcbc61bad 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 "_BCRfS_M"
+#define BTRFS_MAGIC "_BDRfS_M"
 
 #define BTRFS_ACL_NOT_CACHED    ((void *)-1)