diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 074f4b1..fb21444 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -39,7 +39,7 @@
 			key.flags = 0;
 			key.offset = 1;
 			init_path(&path);
-			ret = search_slot(extent_root, &key, &path, 0);
+			ret = search_slot(extent_root, &key, &path, -1);
 			if (ret) {
 				print_tree(extent_root, extent_root->node);
 				printf("unable to find %Lu\n", key.objectid);
@@ -83,7 +83,7 @@
 		return 0;
 	}
 	init_path(&path);
-	ret = search_slot(extent_root, &key, &path, 0);
+	ret = search_slot(extent_root, &key, &path, -1);
 	if (ret) {
 		print_tree(extent_root, extent_root->node);
 		printf("failed to find %Lu\n", key.objectid);