diff --git a/hypervisor/common/hypercall.c b/hypervisor/common/hypercall.c
index 6a2df2ac8..28d6370f4 100644
--- a/hypervisor/common/hypercall.c
+++ b/hypervisor/common/hypercall.c
@@ -1118,7 +1118,7 @@ int32_t hcall_vm_intr_monitor(struct acrn_vm *vm, uint16_t vmid, uint64_t param)
  * @brief set upcall notifier vector
  *
  * This is the API that helps to switch the notifer vecotr. If this API is
- * not called, the hypervisor will use the default notifier vector(0xF7)
+ * not called, the hypervisor will use the default notifier vector(0xF3)
  * to notify the SOS kernel.
  *
  * @param vm Pointer to VM data structure
diff --git a/hypervisor/common/io_request.c b/hypervisor/common/io_request.c
index fe471653a..39fb6aef0 100644
--- a/hypervisor/common/io_request.c
+++ b/hypervisor/common/io_request.c
@@ -7,7 +7,7 @@
 
 #define ACRN_DBG_IOREQUEST	6U
 
-static uint32_t acrn_vhm_vector = VECTOR_VIRT_IRQ_VHM;
+static uint32_t acrn_vhm_vector = VECTOR_HYPERVISOR_CALLBACK_VHM;
 
 static void fire_vhm_interrupt(void)
 {