diff --git a/include/asm-i386/mpspec.h b/include/asm-i386/mpspec.h
index 62113d3..770bf6d 100644
--- a/include/asm-i386/mpspec.h
+++ b/include/asm-i386/mpspec.h
@@ -18,7 +18,6 @@
 extern void get_smp_config (void);
 extern int nr_ioapics;
 extern int apic_version [MAX_APICS];
-extern int mp_bus_id_to_type [MAX_MP_BUSSES];
 extern int mp_irq_entries;
 extern struct mpc_config_intsrc mp_irqs [MAX_IRQ_SOURCES];
 extern int mpc_default_type;