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-rw-r--r--src/emu/validity.cpp2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/emu/validity.cpp b/src/emu/validity.cpp
index 5a74a100147..c47604448bf 100644
--- a/src/emu/validity.cpp
+++ b/src/emu/validity.cpp
@@ -1620,6 +1620,8 @@ void validity_checker::validate_roms(device_t &root)
// check that default BIOS exists
if (defbios && (bios_names.find(defbios) == bios_names.end()))
osd_printf_error("Default BIOS '%s' not found\n", defbios);
+ if (!device.get_default_bios_tag().empty() && (bios_names.find(device.get_default_bios_tag()) == bios_names.end()))
+ osd_printf_error("Configured BIOS '%s' not found\n", device.get_default_bios_tag().c_str());
// final check for empty regions
if (items_since_region == 0)