diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index 2ff02541c53d..1934dc6ad1cc 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -2257,6 +2257,9 @@ static int __f2fs_build_free_nids(struct f2fs_sb_info *sbi,
 	if (unlikely(nid >= nm_i->max_nid))
 		nid = 0;
 
+	if (unlikely(nid % NAT_ENTRY_PER_BLOCK))
+		nid = NAT_BLOCK_OFFSET(nid) * NAT_ENTRY_PER_BLOCK;
+
 	/* Enough entries */
 	if (nm_i->nid_cnt[FREE_NID] >= NAT_ENTRY_PER_BLOCK)
 		return 0;