diff --git a/25_day/console.c b/25_day/console.c
index dc323db..1b58cd6 100644
--- a/25_day/console.c
+++ b/25_day/console.c
@@ -294,12 +294,12 @@ int cmd_app(struct CONSOLE *cons, int *fat, char *cmdline)
 			dathrb = *((int *) (p + 0x0014));
 			q = (char *) memman_alloc_4k(memman, segsiz);
 			task->ds_base = (int) q;
-			set_segmdesc(gdt + 1003, finfo->size - 1, (int) p, AR_CODE32_ER + 0x60);
-			set_segmdesc(gdt + 1004, segsiz - 1,      (int) q, AR_DATA32_RW + 0x60);
+			set_segmdesc(gdt + task->sel / 8 + 1000, finfo->size - 1, (int) p, AR_CODE32_ER + 0x60);
+			set_segmdesc(gdt + task->sel / 8 + 2000, segsiz - 1, (int) q, AR_DATA32_RW + 0x60);
 			for (i = 0; i < datsiz; i++) {
 				q[esp + i] = p[dathrb + i];
 			}
-			start_app(0x1b, 1003 * 8, esp, 1004 * 8, &(task->tss.esp0));
+			start_app(0x1b, task->sel + 1000 * 8, esp, task->sel + 2000 * 8, &(task->tss.esp0));
 			shtctl = (struct SHTCTL *) *((int *) 0x0fe4);
 			for (i = 0; i < MAX_SHEETS; i++) {
 				sht = &(shtctl->sheets0[i]);