diff --git a/qapi/qom.json b/qapi/qom.json
index 32db96ffc4..1e3c2ad555 100644
--- a/qapi/qom.json
+++ b/qapi/qom.json
@@ -26,10 +26,15 @@
 #
 # @description: if specified, the description of the property.
 #
+# @default-value: the default value, if any (since 5.0)
+#
 # Since: 1.2
 ##
 { 'struct': 'ObjectPropertyInfo',
-  'data': { 'name': 'str', 'type': 'str', '*description': 'str' } }
+  'data': { 'name': 'str',
+            'type': 'str',
+            '*description': 'str',
+            '*default-value': 'any' } }
 
 ##
 # @qom-list:
diff --git a/qom/qom-qmp-cmds.c b/qom/qom-qmp-cmds.c
index 8785816c1f..6136efec16 100644
--- a/qom/qom-qmp-cmds.c
+++ b/qom/qom-qmp-cmds.c
@@ -177,6 +177,8 @@ ObjectPropertyInfoList *qmp_device_list_properties(const char *typename,
         info->type = g_strdup(prop->type);
         info->has_description = !!prop->description;
         info->description = g_strdup(prop->description);
+        info->default_value = qobject_ref(prop->defval);
+        info->has_default_value = !!info->default_value;
 
         entry = g_malloc0(sizeof(*entry));
         entry->value = info;