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-rw-r--r--src/mame/drivers/metro.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/mame/drivers/metro.cpp b/src/mame/drivers/metro.cpp
index 41600286900..82c18c784ee 100644
--- a/src/mame/drivers/metro.cpp
+++ b/src/mame/drivers/metro.cpp
@@ -207,7 +207,7 @@ void metro_state::device_timer(emu_timer &timer, device_timer_id id, int param,
update_irq_state();
break;
default:
- assert_always(false, "Unknown id in metro_state::device_timer");
+ throw emu_fatalerror("Unknown id in metro_state::device_timer");
}
}