diff --git a/fs/btrfs/qgroup.c b/fs/btrfs/qgroup.c
index e879d0182fb7..db8f83ab55f6 100644
--- a/fs/btrfs/qgroup.c
+++ b/fs/btrfs/qgroup.c
@@ -4285,4 +4285,5 @@ void btrfs_qgroup_destroy_extent_records(struct btrfs_transaction *trans)
 		ulist_free(entry->old_roots);
 		kfree(entry);
 	}
+	*root = RB_ROOT;
 }