diff --git a/configure.ac b/configure.ac
index 1b4870eef..9943bebe9 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1174,7 +1174,7 @@ AM_CONDITIONAL([FT2232_DRIVER], [test $build_ft2232_ftd2xx = yes -o $build_ft223
 AM_CONDITIONAL([USB_BLASTER_LIBFTDI], [test $build_usb_blaster_libftdi = yes])
 AM_CONDITIONAL([USB_BLASTER_FTD2XX], [test $build_usb_blaster_ftd2xx = yes])
 AM_CONDITIONAL([JTAG_VPI], [test $build_jtag_vpi = yes -o $build_jtag_vpi = yes])
-AM_CONDITIONAL([USB_BLASTER_DRIVER], [test $build_usb_blaster_ftd2xx = yes -o $build_usb_blaster_libftdi = yes -o $use_libusb1 = yes])
+AM_CONDITIONAL([USB_BLASTER_DRIVER], [test $build_usb_blaster_ftd2xx = yes -o $build_usb_blaster_libftdi = yes -o $enable_usb_blaster_2 != no])
 AM_CONDITIONAL([AMTJTAGACCEL], [test $build_amtjtagaccel = yes])
 AM_CONDITIONAL([GW16012], [test $build_gw16012 = yes])
 AM_CONDITIONAL([PRESTO_LIBFTDI], [test $build_presto_libftdi = yes])