diff --git a/kvm-ioctls/CHANGELOG.md b/kvm-ioctls/CHANGELOG.md
index 41e54760..066d44c5 100644
--- a/kvm-ioctls/CHANGELOG.md
+++ b/kvm-ioctls/CHANGELOG.md
@@ -2,6 +2,8 @@
 
 ## Upcoming Release
 
+- Plumb through KVM_CAP_X2APIC_API as X2ApicApi cap.
+
 ## v0.23.0
 
 ### Added
diff --git a/kvm-ioctls/src/cap.rs b/kvm-ioctls/src/cap.rs
index 3f5d6123..67d4eb54 100644
--- a/kvm-ioctls/src/cap.rs
+++ b/kvm-ioctls/src/cap.rs
@@ -167,4 +167,6 @@ pub enum Cap {
     MemoryAttributes = KVM_CAP_MEMORY_ATTRIBUTES,
     #[cfg(target_arch = "x86_64")]
     NestedState = KVM_CAP_NESTED_STATE,
+    #[cfg(target_arch = "x86_64")]
+    X2ApicApi = KVM_CAP_X2APIC_API,
 }