diff --git a/linux-2.6.11-xen-sparse/arch/xen/configs/xen0_defconfig_x86_64 b/linux-2.6.11-xen-sparse/arch/xen/configs/xen0_defconfig_x86_64
index 745fd653db..2150f4381b 100644
--- a/linux-2.6.11-xen-sparse/arch/xen/configs/xen0_defconfig_x86_64
+++ b/linux-2.6.11-xen-sparse/arch/xen/configs/xen0_defconfig_x86_64
@@ -84,7 +84,7 @@ CONFIG_X86_GOOD_APIC=y
 # CONFIG_HPET_TIMER is not set
 # CONFIG_SMP is not set
 # CONFIG_PREEMPT is not set
-# CONFIG_MICROCODE is not set
+CONFIG_MICROCODE=y
 # CONFIG_X86_CPUID is not set
 # CONFIG_NUMA is not set
 # CONFIG_MTRR is not set