diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c
index cf85d42198..a88c4070ab 100644
--- a/src/qemu/qemu_capabilities.c
+++ b/src/qemu/qemu_capabilities.c
@@ -693,6 +693,7 @@ VIR_ENUM_IMPL(virQEMUCaps,
               "virtio-gpu.blob", /* QEMU_CAPS_VIRTIO_GPU_BLOB */
               "rbd-encryption-layering", /* QEMU_CAPS_RBD_ENCRYPTION_LAYERING */
               "rbd-encryption-luks-any", /* QEMU_CAPS_RBD_ENCRYPTION_LUKS_ANY */
+              "machine.virt.mte", /* QEMU_CAPS_MACHINE_VIRT_MTE */
     );
 
 
@@ -1720,6 +1721,7 @@ static struct virQEMUCapsStringFlags virQEMUCapsMachinePropsPSeries[] = {
 
 static struct virQEMUCapsStringFlags virQEMUCapsMachinePropsVirt[] = {
     { "iommu", QEMU_CAPS_MACHINE_VIRT_IOMMU },
+    { "mte", QEMU_CAPS_MACHINE_VIRT_MTE },
 };
 
 static struct virQEMUCapsStringFlags virQEMUCapsMachinePropsGeneric[] = {
diff --git a/src/qemu/qemu_capabilities.h b/src/qemu/qemu_capabilities.h
index 3b55aed07a..ffece17877 100644
--- a/src/qemu/qemu_capabilities.h
+++ b/src/qemu/qemu_capabilities.h
@@ -672,6 +672,7 @@ typedef enum { /* virQEMUCapsFlags grouping marker for syntax-check */
     QEMU_CAPS_VIRTIO_GPU_BLOB, /* -device virtio-gpu-*.blob= */
     QEMU_CAPS_RBD_ENCRYPTION_LAYERING, /* layered encryption support for Ceph RBD */
     QEMU_CAPS_RBD_ENCRYPTION_LUKS_ANY, /* luks-any (LUKS and LUKS2) encryption format for Ceph RBD */
+    QEMU_CAPS_MACHINE_VIRT_MTE, /* -machine virt,mte=* for ARM guests */
 
     QEMU_CAPS_LAST /* this must always be the last item */
 } virQEMUCapsFlags;
diff --git a/tests/qemucapabilitiesdata/caps_5.2.0_aarch64.xml b/tests/qemucapabilitiesdata/caps_5.2.0_aarch64.xml
index b1c5c21abb..4843b32a45 100644
--- a/tests/qemucapabilitiesdata/caps_5.2.0_aarch64.xml
+++ b/tests/qemucapabilitiesdata/caps_5.2.0_aarch64.xml
@@ -130,6 +130,7 @@
   <flag name='virtio-net.rss'/>
   <flag name='usb-host.guest-resets-all'/>
   <flag name='virtio-crypto'/>
+  <flag name='machine.virt.mte'/>
   <version>5002000</version>
   <microcodeVersion>61700243</microcodeVersion>
   <package>v5.2.0</package>
diff --git a/tests/qemucapabilitiesdata/caps_6.0.0_aarch64.xml b/tests/qemucapabilitiesdata/caps_6.0.0_aarch64.xml
index 6faf407a97..78e297c7f4 100644
--- a/tests/qemucapabilitiesdata/caps_6.0.0_aarch64.xml
+++ b/tests/qemucapabilitiesdata/caps_6.0.0_aarch64.xml
@@ -140,6 +140,7 @@
   <flag name='migration.blocked-reasons'/>
   <flag name='virtio-crypto'/>
   <flag name='pvpanic-pci'/>
+  <flag name='machine.virt.mte'/>
   <version>6000000</version>
   <microcodeVersion>61700242</microcodeVersion>
   <package>v6.0.0</package>
diff --git a/tests/qemucapabilitiesdata/caps_6.2.0_aarch64.xml b/tests/qemucapabilitiesdata/caps_6.2.0_aarch64.xml
index e312801b89..f37b84d399 100644
--- a/tests/qemucapabilitiesdata/caps_6.2.0_aarch64.xml
+++ b/tests/qemucapabilitiesdata/caps_6.2.0_aarch64.xml
@@ -153,6 +153,7 @@
   <flag name='virtio-crypto'/>
   <flag name='pvpanic-pci'/>
   <flag name='virtio-gpu.blob'/>
+  <flag name='machine.virt.mte'/>
   <version>6001050</version>
   <microcodeVersion>61700244</microcodeVersion>
   <package></package>
diff --git a/tests/qemucapabilitiesdata/caps_7.0.0_aarch64+hvf.xml b/tests/qemucapabilitiesdata/caps_7.0.0_aarch64+hvf.xml
index 3517e81d15..d0f1815e85 100644
--- a/tests/qemucapabilitiesdata/caps_7.0.0_aarch64+hvf.xml
+++ b/tests/qemucapabilitiesdata/caps_7.0.0_aarch64+hvf.xml
@@ -161,6 +161,7 @@
   <flag name='virtio-crypto'/>
   <flag name='pvpanic-pci'/>
   <flag name='virtio-gpu.blob'/>
+  <flag name='machine.virt.mte'/>
   <version>6002092</version>
   <microcodeVersion>61700243</microcodeVersion>
   <package>v7.0.0-rc2</package>
diff --git a/tests/qemucapabilitiesdata/caps_7.0.0_aarch64.xml b/tests/qemucapabilitiesdata/caps_7.0.0_aarch64.xml
index 58db75d1d7..5ca98e19be 100644
--- a/tests/qemucapabilitiesdata/caps_7.0.0_aarch64.xml
+++ b/tests/qemucapabilitiesdata/caps_7.0.0_aarch64.xml
@@ -161,6 +161,7 @@
   <flag name='virtio-crypto'/>
   <flag name='pvpanic-pci'/>
   <flag name='virtio-gpu.blob'/>
+  <flag name='machine.virt.mte'/>
   <version>6002092</version>
   <microcodeVersion>61700243</microcodeVersion>
   <package>v7.0.0-rc2</package>