diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c
index 6130ba69bc49e5f79d1c73f1b9cc0e194eefbcb9..ba39f6969a7232251cc077a264f79075c53a4ddd 100644
--- a/fs/btrfs/relocation.c
+++ b/fs/btrfs/relocation.c
@@ -3089,7 +3089,6 @@ static int get_tree_block_key(struct btrfs_fs_info *fs_info,
 {
 	struct extent_buffer *eb;
 
-	BUG_ON(block->key_ready);
 	eb = read_tree_block(fs_info, block->bytenr, block->key.offset,
 			     block->level, NULL);
 	if (IS_ERR(eb)) {