diff --git a/hypervisor/arch/x86/guest/virq.c b/hypervisor/arch/x86/guest/virq.c
index 4cf0f9830..97071b222 100644
--- a/hypervisor/arch/x86/guest/virq.c
+++ b/hypervisor/arch/x86/guest/virq.c
@@ -289,6 +289,7 @@ static bool vcpu_inject_lo_exception(struct acrn_vcpu *vcpu)
 void vcpu_inject_extint(struct acrn_vcpu *vcpu)
 {
 	vcpu_make_request(vcpu, ACRN_REQUEST_EXTINT);
+	signal_event(&vcpu->events[VCPU_EVENT_VIRTUAL_INTERRUPT]);
 }
 
 /* Inject NMI to guest */