diff --git a/mdx/uk/generate.xml b/mdx/uk/generate.xml
index 53f19fe..778d17c 100644
--- a/mdx/uk/generate.xml
+++ b/mdx/uk/generate.xml
@@ -70,9 +70,9 @@
                     Set the item's ID attribute to the static string "_".
                 -->
                 <bean id="setStaticID" parent="mda.GenerateIdStage">
-                    <constructor-arg>
+                    <property name="generator">
                         <bean parent="ukf.FixedStringIdentifierGenerationStrategy" c:_="_"/>
-                    </constructor-arg>
+                    </property>
                 </bean>
             </list>
         </property>
diff --git a/mdx/uk/mdq-multisign.xml b/mdx/uk/mdq-multisign.xml
index 76bcf9b..40865ca 100644
--- a/mdx/uk/mdq-multisign.xml
+++ b/mdx/uk/mdq-multisign.xml
@@ -62,9 +62,9 @@
 
                 <!-- Set ID and cacheDuration attributes. -->
                 <bean parent="mda.GenerateIdStage">
-                    <constructor-arg>
+                    <property name="generator">
                         <bean parent="ukf.FixedStringIdentifierGenerationStrategy" c:_="_"/>
-                    </constructor-arg>
+                    </property>
                 </bean>
                 <bean parent="mda.SetCacheDurationStage" p:cacheDuration="${cacheDuration.perEntity.duration}"/>