diff --git a/extent_io.h b/extent_io.h
index f8f73089..d407d93d 100644
--- a/extent_io.h
+++ b/extent_io.h
@@ -91,10 +91,10 @@ struct extent_buffer {
 	struct cache_extent cache_node;
 	u64 start;
 	u64 dev_bytenr;
-	u32 len;
 	struct extent_io_tree *tree;
 	struct list_head lru;
 	struct list_head recow;
+	u32 len;
 	int refs;
 	u32 flags;
 	int fd;