diff --git a/sw_usb_audio/app_usb_aud_fosi_c1_v71/src/extensions/audiohw.xc b/sw_usb_audio/app_usb_aud_fosi_c1_v71/src/extensions/audiohw.xc
index fb1f66f..3d109fc 100644
--- a/sw_usb_audio/app_usb_aud_fosi_c1_v71/src/extensions/audiohw.xc
+++ b/sw_usb_audio/app_usb_aud_fosi_c1_v71/src/extensions/audiohw.xc
@@ -267,7 +267,7 @@ static void tx1_boot_firmware_select_by_os(void)
         debug_printf("boot: Windows -> fps71_uac2 RoleSwitch\n");
         SetRoleSwitchFlag(TX1_ROLE_FPS71_UAC2);
         tx1_amp_mute_before_reboot();
-        delay_milliseconds(1000);
+        delay_milliseconds(100);
         device_reboot();
         while (1) {
         }