1 files changed, 1 insertions, 1 deletions
diff --git a/ctree.h b/ctree.h
index 9bdcf6b6..12f8fe30 100644
--- a/ctree.h
+++ b/ctree.h
@@ -28,7 +28,7 @@
 
 struct btrfs_root;
 struct btrfs_trans_handle;
-#define BTRFS_MAGIC "_BHRfS_M"
+#define BTRFS_MAGIC 0x4D5F53665248425F /* ascii _BHRfS_M, no null */
 
 #define BTRFS_MAX_LEVEL 8