diff --git a/addons/web/static/src/views/fields/domain/domain_field.xml b/addons/web/static/src/views/fields/domain/domain_field.xml
index 132433ac207..980ba3dd47f 100644
--- a/addons/web/static/src/views/fields/domain/domain_field.xml
+++ b/addons/web/static/src/views/fields/domain/domain_field.xml
@@ -10,7 +10,7 @@
                     readonly="props.readonly or props.editInDialog"
                     update.bind="update"
                     isDebugMode="!!env.debug"
-                    debugValue="props.value"
+                    debugValue="props.value || '[]'"
                     className="props.readonly ? 'o_read_mode' : 'o_edit_mode'"
                 />
                 <div class="o_field_domain_panel">