diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c
index 5ff232608c..8b7fde2bcc 100644
--- a/src/qemu/qemu_capabilities.c
+++ b/src/qemu/qemu_capabilities.c
@@ -558,6 +558,7 @@ VIR_ENUM_IMPL(virQEMUCaps,
               /* 350 */
               "i8042",
               "rng-builtin",
+              "virtio-net.failover",
     );
 
 
@@ -1305,6 +1306,7 @@ static struct virQEMUCapsStringFlags virQEMUCapsDevicePropsVirtioNet[] = {
     { "disable-legacy", QEMU_CAPS_VIRTIO_PCI_DISABLE_LEGACY },
     { "iommu_platform", QEMU_CAPS_VIRTIO_PCI_IOMMU_PLATFORM },
     { "ats", QEMU_CAPS_VIRTIO_PCI_ATS },
+    { "failover", QEMU_CAPS_VIRTIO_NET_FAILOVER },
 };
 
 static struct virQEMUCapsStringFlags virQEMUCapsDevicePropsSpaprPCIHostBridge[] = {
diff --git a/src/qemu/qemu_capabilities.h b/src/qemu/qemu_capabilities.h
index 56af9e9a0e..00c47ffd93 100644
--- a/src/qemu/qemu_capabilities.h
+++ b/src/qemu/qemu_capabilities.h
@@ -539,6 +539,7 @@ typedef enum { /* virQEMUCapsFlags grouping marker for syntax-check */
     /* 350 */
     QEMU_CAPS_DEVICE_I8042, /* PS/2 controller */
     QEMU_CAPS_OBJECT_RNG_BUILTIN, /* -object rng-builtin */
+    QEMU_CAPS_VIRTIO_NET_FAILOVER, /* virtio-net-*.failover */
 
     QEMU_CAPS_LAST /* this must always be the last item */
 } virQEMUCapsFlags;
diff --git a/tests/qemucapabilitiesdata/caps_4.2.0.aarch64.xml b/tests/qemucapabilitiesdata/caps_4.2.0.aarch64.xml
index ab81854e62..d0faa4c471 100644
--- a/tests/qemucapabilitiesdata/caps_4.2.0.aarch64.xml
+++ b/tests/qemucapabilitiesdata/caps_4.2.0.aarch64.xml
@@ -177,6 +177,7 @@
   <flag name='drive-nvme'/>
   <flag name='smp-dies'/>
   <flag name='rng-builtin'/>
+  <flag name='virtio-net.failover'/>
   <version>4001050</version>
   <kvmVersion>0</kvmVersion>
   <microcodeVersion>61700242</microcodeVersion>
diff --git a/tests/qemucapabilitiesdata/caps_4.2.0.x86_64.xml b/tests/qemucapabilitiesdata/caps_4.2.0.x86_64.xml
index 0361ed5bdb..faed23f5c1 100644
--- a/tests/qemucapabilitiesdata/caps_4.2.0.x86_64.xml
+++ b/tests/qemucapabilitiesdata/caps_4.2.0.x86_64.xml
@@ -221,6 +221,7 @@
   <flag name='smp-dies'/>
   <flag name='i8042'/>
   <flag name='rng-builtin'/>
+  <flag name='virtio-net.failover'/>
   <version>4002000</version>
   <kvmVersion>0</kvmVersion>
   <microcodeVersion>43100242</microcodeVersion>
diff --git a/tests/qemucapabilitiesdata/caps_5.0.0.x86_64.xml b/tests/qemucapabilitiesdata/caps_5.0.0.x86_64.xml
index a84cbed1f7..1eef7197ef 100644
--- a/tests/qemucapabilitiesdata/caps_5.0.0.x86_64.xml
+++ b/tests/qemucapabilitiesdata/caps_5.0.0.x86_64.xml
@@ -222,6 +222,7 @@
   <flag name='smp-dies'/>
   <flag name='i8042'/>
   <flag name='rng-builtin'/>
+  <flag name='virtio-net.failover'/>
   <version>4002050</version>
   <kvmVersion>0</kvmVersion>
   <microcodeVersion>43100241</microcodeVersion>