diff --git a/src/machine/m_xt_zenith.c b/src/machine/m_xt_zenith.c
index 6fc26d9ce..b5e5082a3 100644
--- a/src/machine/m_xt_zenith.c
+++ b/src/machine/m_xt_zenith.c
@@ -207,18 +207,18 @@ machine_xt_z150_init(const machine_t *model)
 {
 	int ret;
 
-    ret = bios_load_linear(L"roms/machines/z150/BIOS-Z150-1988.bin",
+    ret = bios_load_linear("roms/machines/z150/BIOS-Z150-1988.bin",
 			   0x000f8000, 32768, 0);
 
     if (bios_only || !ret)
-	return ret;
+        return ret;
 
 	device_add(&keyboard_pc82_device);
 	device_add(&zenith_scratchpad_device);
 	machine_common_init(model);
-    pit_ctr_set_out_func(&pit->counters[1], pit_refresh_timer_xt);
+//    pit_ctr_set_out_func(&pit->counters[1], pit_refresh_timer_xt);
     device_add(&fdc_xt_device);
-    nmi_init();
+//    nmi_init();
 	
     return ret;
 }
diff --git a/src/machine/machine_table.c b/src/machine/machine_table.c
index a724849e1..68532ff78 100644
--- a/src/machine/machine_table.c
+++ b/src/machine/machine_table.c
@@ -1245,7 +1245,7 @@ const machine_t machines[] = {
             .min_multi = 0,
             .max_multi = 0
         },
-        .bus_flags = MACHINE_ISA,
+        .bus_flags = MACHINE_PC,
         .flags = MACHINE_FLAGS_NONE,
         .ram = {
             .min = 128,