Index: uspace/srv/vfs/vfs_lookup.c
===================================================================
--- uspace/srv/vfs/vfs_lookup.c	(revision a806bd613d975a70d821e6499552f6d542743505)
+++ uspace/srv/vfs/vfs_lookup.c	(revision 4ada6d5f07676b184da69d6a36957e9f51102305)
@@ -146,5 +146,6 @@
 	int phone = vfs_grab_phone(root->fs_handle);
 	aid_t req = async_send_3(phone, VFS_LOOKUP, (ipcarg_t) first,
-	    (ipcarg_t) last, (ipcarg_t) root->dev_handle, &answer);
+	    (ipcarg_t) (first + len - 1) % PLB_SIZE,
+	    (ipcarg_t) root->dev_handle, &answer);
 	vfs_release_phone(phone);