diff --git a/src/mame/drivers/aerofgt.c b/src/mame/drivers/aerofgt.c
index 25a8e3852ff..b34adf2b23e 100644
--- a/src/mame/drivers/aerofgt.c
+++ b/src/mame/drivers/aerofgt.c
@@ -1375,7 +1375,7 @@ static MACHINE_DRIVER_START( spikes91 )
 	MDRV_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(0))
 	MDRV_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16)
 	MDRV_SCREEN_SIZE(64*8, 32*8)
-	MDRV_SCREEN_VISIBLE_AREA(0*8+4, 44*8+4-1, 0*8, 30*8-1)
+	MDRV_SCREEN_VISIBLE_AREA(0*8, 320-1, 0*8+4, 224+4-1)
 	MDRV_GFXDECODE(spikes91)
 	MDRV_PALETTE_LENGTH(2048)
 
diff --git a/src/mame/video/aerofgt.c b/src/mame/video/aerofgt.c
index cfd55c36aa9..965045def19 100644
--- a/src/mame/video/aerofgt.c
+++ b/src/mame/video/aerofgt.c
@@ -573,7 +573,7 @@ static void spikes91_draw_sprites(running_machine *machine, bitmap_t *bitmap,con
 
 		if (!code) continue;
 
-		xpos = (aerofgt_spriteram3[i + 2] & 0x01ff) - 13;
+		xpos = (aerofgt_spriteram3[i + 2] & 0x01ff) - 16;
 		ypos = 256 - (aerofgt_spriteram3[i + 1] & 0x00ff) - 26;
 		flipy = 0;
 		flipx = aerofgt_spriteram3[i + 3] & 0x8000;