diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index 342597a..6369281 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -2000,6 +2000,7 @@
 	nm_i->nat_cnt = 0;
 	nm_i->ram_thresh = DEF_RAM_THRESHOLD;
 	nm_i->ra_nid_pages = DEF_RA_NID_PAGES;
+	nm_i->dirty_nats_ratio = DEF_DIRTY_NAT_RATIO_THRESHOLD;
 
 	INIT_RADIX_TREE(&nm_i->free_nid_root, GFP_ATOMIC);
 	INIT_LIST_HEAD(&nm_i->free_nid_list);