Index: uspace/srv/fs/fat/fat_fat.c
===================================================================
--- uspace/srv/fs/fat/fat_fat.c	(revision 5d95f02bc12b9857f647e740b9a09558e914a1f3)
+++ uspace/srv/fs/fat/fat_fat.c	(revision 4bf68955193cc391b927247a30e1bd1a64901d4f)
@@ -796,5 +796,5 @@
 		} else {
 			rc = fat_cluster_walk(bs, service_id, nodep->firstc,
-			    &lastc, NULL, (uint16_t) -1);
+			    &lastc, NULL, (uint32_t) -1);
 			if (rc != EOK)
 				return rc;