diff --git a/fs/btrfs/compression.h b/fs/btrfs/compression.h
index 9b5f2f3..f7ce217 100644
--- a/fs/btrfs/compression.h
+++ b/fs/btrfs/compression.h
@@ -73,5 +73,6 @@
 };
 
 extern struct btrfs_compress_op btrfs_zlib_compress;
+extern struct btrfs_compress_op btrfs_lzo_compress;
 
 #endif