diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c
index 41ef199a79..37ed750f8b 100644
--- a/src/qemu/qemu_capabilities.c
+++ b/src/qemu/qemu_capabilities.c
@@ -628,6 +628,7 @@ VIR_ENUM_IMPL(virQEMUCaps,
 
               /* 400 */
               "compat-deprecated",
+              "acpi-index",
     );
 
 
@@ -1366,6 +1367,7 @@ static struct virQEMUCapsDevicePropsFlags virQEMUCapsDevicePropsVirtioBalloon[]
     { "ats", QEMU_CAPS_VIRTIO_PCI_ATS, NULL },
     { "packed", QEMU_CAPS_VIRTIO_PACKED_QUEUES, NULL },
     { "free-page-reporting", QEMU_CAPS_VIRTIO_BALLOON_FREE_PAGE_REPORTING, NULL },
+    { "acpi-index", QEMU_CAPS_ACPI_INDEX, NULL },
 };
 
 
@@ -1398,6 +1400,7 @@ static struct virQEMUCapsDevicePropsFlags virQEMUCapsDevicePropsVirtioBlk[] = {
     { "write-cache", QEMU_CAPS_DISK_WRITE_CACHE, NULL },
     { "werror", QEMU_CAPS_STORAGE_WERROR, NULL },
     { "packed", QEMU_CAPS_VIRTIO_PACKED_QUEUES, NULL },
+    { "acpi-index", QEMU_CAPS_ACPI_INDEX, NULL },
 };
 
 static struct virQEMUCapsDevicePropsFlags virQEMUCapsDevicePropsVirtioNet[] = {
@@ -1411,6 +1414,7 @@ static struct virQEMUCapsDevicePropsFlags virQEMUCapsDevicePropsVirtioNet[] = {
     { "ats", QEMU_CAPS_VIRTIO_PCI_ATS, NULL },
     { "failover", QEMU_CAPS_VIRTIO_NET_FAILOVER, NULL },
     { "packed", QEMU_CAPS_VIRTIO_PACKED_QUEUES, NULL },
+    { "acpi-index", QEMU_CAPS_ACPI_INDEX, NULL },
 };
 
 static struct virQEMUCapsDevicePropsFlags virQEMUCapsDevicePropsPCIeRootPort[] = {
@@ -1431,6 +1435,7 @@ static struct virQEMUCapsDevicePropsFlags virQEMUCapsDevicePropsVirtioSCSI[] = {
     { "iommu_platform", QEMU_CAPS_VIRTIO_PCI_IOMMU_PLATFORM, NULL },
     { "ats", QEMU_CAPS_VIRTIO_PCI_ATS, NULL },
     { "packed", QEMU_CAPS_VIRTIO_PACKED_QUEUES, NULL },
+    { "acpi-index", QEMU_CAPS_ACPI_INDEX, NULL },
 };
 
 static struct virQEMUCapsDevicePropsFlags virQEMUCapsDevicePropsVfioPCI[] = {
@@ -1502,6 +1507,7 @@ static struct virQEMUCapsDevicePropsFlags virQEMUCapsDevicePropsVirtioGpu[] = {
     { "iommu_platform", QEMU_CAPS_VIRTIO_PCI_IOMMU_PLATFORM, NULL },
     { "ats", QEMU_CAPS_VIRTIO_PCI_ATS, NULL },
     { "packed", QEMU_CAPS_VIRTIO_PACKED_QUEUES, NULL },
+    { "acpi-index", QEMU_CAPS_ACPI_INDEX, NULL },
 };
 
 static struct virQEMUCapsDevicePropsFlags virQEMUCapsDevicePropsICH9[] = {
diff --git a/src/qemu/qemu_capabilities.h b/src/qemu/qemu_capabilities.h
index c553a5f4a4..1ca9c1ea7b 100644
--- a/src/qemu/qemu_capabilities.h
+++ b/src/qemu/qemu_capabilities.h
@@ -608,6 +608,7 @@ typedef enum { /* virQEMUCapsFlags grouping marker for syntax-check */
 
     /* 400 */
     QEMU_CAPS_COMPAT_DEPRECATED, /* -compat deprecated-(input|output) is supported */
+    QEMU_CAPS_ACPI_INDEX, /* PCI device 'acpi-index' property */
 
     QEMU_CAPS_LAST /* this must always be the last item */
 } virQEMUCapsFlags;
diff --git a/tests/qemucapabilitiesdata/caps_6.0.0.x86_64.xml b/tests/qemucapabilitiesdata/caps_6.0.0.x86_64.xml
index 8d12645a8e..8cc949d735 100644
--- a/tests/qemucapabilitiesdata/caps_6.0.0.x86_64.xml
+++ b/tests/qemucapabilitiesdata/caps_6.0.0.x86_64.xml
@@ -262,6 +262,7 @@
   <flag name='object.qapified'/>
   <flag name='rotation-rate'/>
   <flag name='compat-deprecated'/>
+  <flag name='acpi-index'/>
   <version>5002092</version>
   <kvmVersion>0</kvmVersion>
   <microcodeVersion>43100242</microcodeVersion>