Index: uspace/srv/fs/fat/fat_fat.c
===================================================================
--- uspace/srv/fs/fat/fat_fat.c	(revision 4f1c0b4508cc407558c39daef8cd8eaf155276f0)
+++ uspace/srv/fs/fat/fat_fat.c	(revision 9d20ea878e2396fc1478eaee889f79eb279057b6)
@@ -361,5 +361,6 @@
 	uint8_t fatno;
 
-	if (fat_clusters_get(bs, nodep->idx->dev_handle, nodep->firstc) == 0) {
+	if (fat_cluster_walk(bs, nodep->idx->dev_handle, nodep->firstc, &lcl,
+	    NULL, (uint16_t) -1) == 0) {
 		/* No clusters allocated to the node yet. */
 		nodep->firstc = host2uint16_t_le(mcl);