diff --git a/arch/x86/kernel/io_apic.c b/arch/x86/kernel/io_apic.c
index 7ca55669047458311d3bd90cae820d4b40a70464..4e44fd1f466ef122d53db3b1df34d04b651d6a31 100644
--- a/arch/x86/kernel/io_apic.c
+++ b/arch/x86/kernel/io_apic.c
@@ -2077,6 +2077,8 @@ static void __init setup_ioapic_ids_from_mpc(void)
 
 		reg_00.bits.ID = mp_ioapics[apic].mp_apicid;
 		spin_lock_irqsave(&ioapic_lock, flags);
+		io_apic_write(apic, 0, reg_00.raw);
+		spin_unlock_irqrestore(&ioapic_lock, flags);
 
 		/*
 		 * Sanity check