diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
index b8f071ff2a..149e8e8b35 100644
--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
@@ -3670,6 +3670,7 @@ qemuBuildMemoryDeviceProps(virQEMUDriverConfig *cfg,
     unsigned long long requestedsize = 0;
     unsigned long long address = 0;
     bool prealloc = false;
+    virTristateBool dynamicMemslots = VIR_TRISTATE_BOOL_ABSENT;
 
     if (!mem->info.alias) {
         virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
@@ -3711,6 +3712,7 @@ qemuBuildMemoryDeviceProps(virQEMUDriverConfig *cfg,
         blocksize = mem->target.virtio_mem.blocksize;
         requestedsize = mem->target.virtio_mem.requestedsize;
         address = mem->target.virtio_mem.address;
+        dynamicMemslots = mem->target.virtio_mem.dynamicMemslots;
         break;
 
     case VIR_DOMAIN_MEMORY_MODEL_SGX_EPC:
@@ -3733,6 +3735,7 @@ qemuBuildMemoryDeviceProps(virQEMUDriverConfig *cfg,
                               "s:memdev", memdev,
                               "B:prealloc", prealloc,
                               "P:memaddr", address,
+                              "T:dynamic-memslots", dynamicMemslots,
                               "s:id", mem->info.alias,
                               NULL) < 0)
         return NULL;
diff --git a/tests/qemuxmlconfdata/memory-hotplug-virtio-mem.x86_64-latest.args b/tests/qemuxmlconfdata/memory-hotplug-virtio-mem.x86_64-latest.args
index dbe96ae21d..36cff6ec13 100644
--- a/tests/qemuxmlconfdata/memory-hotplug-virtio-mem.x86_64-latest.args
+++ b/tests/qemuxmlconfdata/memory-hotplug-virtio-mem.x86_64-latest.args
@@ -32,7 +32,7 @@ XDG_CONFIG_HOME=/var/lib/libvirt/qemu/domain--1-QEMUGuest1/.config \
 -object '{"qom-type":"memory-backend-ram","id":"memvirtiomem0","reserve":false,"size":1073741824}' \
 -device '{"driver":"virtio-mem-pci","node":0,"block-size":2097152,"requested-size":536870912,"memdev":"memvirtiomem0","id":"virtiomem0","bus":"pci.0","addr":"0x2"}' \
 -object '{"qom-type":"memory-backend-file","id":"memvirtiomem1","mem-path":"/dev/hugepages2M/libvirt/qemu/-1-QEMUGuest1","reserve":false,"size":2147483648,"host-nodes":[1,2,3],"policy":"bind"}' \
--device '{"driver":"virtio-mem-pci","node":0,"block-size":2097152,"requested-size":1073741824,"memdev":"memvirtiomem1","prealloc":true,"memaddr":5637144576,"id":"virtiomem1","bus":"pci.1","addr":"0x1"}' \
+-device '{"driver":"virtio-mem-pci","node":0,"block-size":2097152,"requested-size":1073741824,"memdev":"memvirtiomem1","prealloc":true,"memaddr":5637144576,"dynamic-memslots":true,"id":"virtiomem1","bus":"pci.1","addr":"0x1"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"raw","file":"libvirt-1-storage"}' \
 -device '{"driver":"ide-hd","bus":"ide.0","unit":0,"drive":"libvirt-1-format","id":"ide0-0-0","bootindex":1}' \