diff --git a/src/sio_fdc37c93x.c b/src/sio_fdc37c93x.c
index ae8206b6a..0d4076ade 100644
--- a/src/sio_fdc37c93x.c
+++ b/src/sio_fdc37c93x.c
@@ -9,7 +9,7 @@
  *		Implementation of the SMC FDC37C932FR and FDC37C935 Super
  *		I/O Chips.
  *
- * Version:	@(#)sio_fdc37c93x.c	1.0.10	2018/01/16
+ * Version:	@(#)sio_fdc37c93x.c	1.0.11	2018/03/14
  *
  * Author:	Miran Grca, <mgrca8@gmail.com>
  *		Copyright 2016-2018 Miran Grca.
@@ -36,7 +36,7 @@ static int fdc37c93x_curreg = 0;
 static int fdc37c93x_gpio_reg = 0;
 static uint8_t fdc37c93x_regs[48];
 static uint8_t fdc37c93x_ld_regs[10][256];
-static uint8_t fdc37c93x_gpio_base = 0x00EA;
+static uint16_t fdc37c93x_gpio_base = 0x00EA;
 static fdc_t *fdc37c93x_fdc;
 
 static uint8_t tries;
@@ -122,12 +122,12 @@ static void fdc37c93x_auxio_handler(void)
 {
 	uint16_t ld_port = 0;
 
-	uint8_t local_enable = !!fdc37c93x_ld_regs[3][0x30];
+	uint8_t local_enable = !!fdc37c93x_ld_regs[8][0x30];
 
         io_removehandler(fdc37c93x_gpio_base, 0x0001, fdc37c93x_gpio_read, NULL, NULL, fdc37c93x_gpio_write, NULL, NULL,  NULL);
 	if (local_enable)
 	{
-		fdc37c93x_gpio_base = ld_port = make_port(3);
+		fdc37c93x_gpio_base = ld_port = make_port(8);
 		/* pclog("fdc37c93x: Setting Auxiliary I/O port to %04X\n", ld_port); */
 		if ((ld_port >= 0x0100) && (ld_port <= 0x0FFF))
 		        io_sethandler(fdc37c93x_gpio_base, 0x0001, fdc37c93x_gpio_read, NULL, NULL, fdc37c93x_gpio_write, NULL, NULL,  NULL);
@@ -377,7 +377,7 @@ process_value:
 			}
 			break;
 		case 8:
-			/* Serial port 2 */
+			/* Auxiliary I/O */
 			switch(fdc37c93x_curreg)
 			{
 				case 0x30: