diff --git a/source/fs/mufs/super.c b/source/fs/mufs/super.c
index fcd0814..612bc54 100644
--- a/source/fs/mufs/super.c
+++ b/source/fs/mufs/super.c
@@ -14,7 +14,7 @@
 struct mufs_super {
 	char magic[4];
 	uint32_t nblocks;
-	struct mufs_dentry root;
+	struct mufs_dtree root;
 } __attribute__((packed));
 
 int mufs_mount(struct mufs *fs, struct flash_dev *dev)
@@ -51,11 +51,9 @@ int mufs_format(struct flash_dev *dev)
 
 	super.nblocks = flash_get_capacity(dev) >> dev->log2_block_size;
 
-	super.root.type = MUFS_DIR;
 	super.root.file_size = 0;
 	super.root.root = 0;
 	super.root.depth = 0;
-	super.root.path_len = 0;
 
 	if (flash_write(dev, 0, &super, sizeof super) == 0)
 		return -1;