diff --git a/qemu/tests/cfg/hotplug_virtio_mem.cfg b/qemu/tests/cfg/hotplug_virtio_mem.cfg
index c6a94de17a..14241eedff 100644
--- a/qemu/tests/cfg/hotplug_virtio_mem.cfg
+++ b/qemu/tests/cfg/hotplug_virtio_mem.cfg
@@ -29,3 +29,4 @@
     pcie_extra_root_port = 1
     requested-size_test_vmem0 = "4G 2G"
     error_msg = "virtio-mem device cannot get unplugged while 'size' != '0'"
+    new_error_msg = "virtio-mem device cannot get unplugged while some of its memory is still plugged"
diff --git a/qemu/tests/hotplug_virtio_mem.py b/qemu/tests/hotplug_virtio_mem.py
index 0a3bc88c0c..2b45265f99 100644
--- a/qemu/tests/hotplug_virtio_mem.py
+++ b/qemu/tests/hotplug_virtio_mem.py
@@ -34,6 +34,8 @@ def run(test, params, env):
     timeout = params.get_numeric("login_timeout", 240)
     threshold = params.get_numeric("threshold", target_type=float)
     error_msg = params.get("error_msg")
+    if qemu_version in VersionInterval("[9.0.0,)"):
+        error_msg = params.get("new_error_msg")
     qemu_path = utils_misc.get_qemu_binary(params)
     qemu_version = utils_qemu.get_qemu_version(qemu_path)[0]
     vm = env.get_vm(params["main_vm"])
@@ -67,7 +69,7 @@ def run(test, params, env):
         virtio_mem_utils.check_numa_plugged_mem(
             node_id, requested_size, threshold, vm, test
         )
-    if qemu_version in VersionInterval('[8.1.0,)'):
+    if qemu_version in VersionInterval("[8.1.0,)"):
         try:
             hotplug_test.unplug_memory(vm, target_mem)
         except QMPCmdError as e: