diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index f0eea07..d9a3c30 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -124,6 +124,7 @@
 #define KVM_REQ_MCLOCK_INPROGRESS 19
 #define KVM_REQ_EPR_EXIT          20
 #define KVM_REQ_SCAN_IOAPIC       21
+#define KVM_REQ_GLOBAL_CLOCK_UPDATE 22
 
 #define KVM_USERSPACE_IRQ_SOURCE_ID		0
 #define KVM_IRQFD_RESAMPLE_IRQ_SOURCE_ID	1