diff --git a/drivers/kvm/vmx.c b/drivers/kvm/vmx.c
index 8baf0c9..28af5b0 100644
--- a/drivers/kvm/vmx.c
+++ b/drivers/kvm/vmx.c
@@ -328,7 +328,7 @@ static void setup_msrs(struct kvm_vcpu *vcpu)
         * if efer.sce is enabled.
         */
        --nr_good_msrs;
-#if CONFIG_X86_64
+#ifdef CONFIG_X86_64
        if (is_long_mode(vcpu) && (vcpu->shadow_efer & EFER_SCE))
                ++nr_good_msrs;
 #endif