diff --git a/hw/arm/vexpress.c b/hw/arm/vexpress.c
index d3a58cff1d..326a1a6db5 100644
--- a/hw/arm/vexpress.c
+++ b/hw/arm/vexpress.c
@@ -767,12 +767,6 @@ static void vexpress_a15_instance_init(Object *obj)
      * but can also be specifically set to on or off.
      */
     vms->virt = true;
-    object_property_add_bool(obj, "virtualization", vexpress_get_virt,
-                             vexpress_set_virt);
-    object_property_set_description(obj, "virtualization",
-                                    "Set on/off to enable/disable the ARM "
-                                    "Virtualization Extensions "
-                                    "(defaults to same as 'secure')");
 }
 
 static void vexpress_a9_instance_init(Object *obj)
@@ -820,6 +814,14 @@ static void vexpress_a15_class_init(ObjectClass *oc, void *data)
     mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-a15");
 
     vmc->daughterboard = &a15_daughterboard;
+
+    object_class_property_add_bool(oc, "virtualization", vexpress_get_virt,
+                                   vexpress_set_virt);
+    object_class_property_set_description(oc, "virtualization",
+                                          "Set on/off to enable/disable the ARM "
+                                          "Virtualization Extensions "
+                                          "(defaults to same as 'secure')");
+
 }
 
 static const TypeInfo vexpress_info = {