diff --git a/maven-model-builder/src/test/resources/poms/inheritance/plugin-configuration-child.xml b/maven-model-builder/src/test/resources/poms/inheritance/plugin-configuration-child.xml
index aab3c4c4a3..feb3cb89c9 100644
--- a/maven-model-builder/src/test/resources/poms/inheritance/plugin-configuration-child.xml
+++ b/maven-model-builder/src/test/resources/poms/inheritance/plugin-configuration-child.xml
@@ -26,6 +26,15 @@ under the License.
   <artifactId>child</artifactId>
   <version>12-SNAPSHOT</version>
 
+  <mailingLists>
+    <!--mailingList> MNG-3124: no way to add a list to parent content, only full override
+      <name>child</name>
+      <post>post@mailing.list.com</post>
+      <subscribe>subscribe@mailing.list.com</subscribe>
+      <unsubscribe>unsubscribe@mailing.list.com</unsubscribe>
+    </mailingList-->
+  </mailingLists>
+
   <build>
     <plugins>
       <plugin>
diff --git a/maven-model-builder/src/test/resources/poms/inheritance/plugin-configuration-expected.xml b/maven-model-builder/src/test/resources/poms/inheritance/plugin-configuration-expected.xml
index 0274476c06..00a21f3dde 100644
--- a/maven-model-builder/src/test/resources/poms/inheritance/plugin-configuration-expected.xml
+++ b/maven-model-builder/src/test/resources/poms/inheritance/plugin-configuration-expected.xml
@@ -29,7 +29,16 @@ under the License.
 
   <!-- name is not inherited, but description is -->
   <description>Model inheritance description</description>
-  <url>http://www.apache.org/child/</url><!-- child's artifactId added to parent url -->
+  <url>http://www.apache.org/child/</url><!-- child's artifactId appended to parent url -->
+
+  <mailingLists>
+    <mailingList>
+      <name>parent</name>
+      <post>post@mailing.list.com</post>
+      <subscribe>subscribe@mailing.list.com</subscribe>
+      <unsubscribe>unsubscribe@mailing.list.com</unsubscribe>
+    </mailingList>
+  </mailingLists>
 
   <build>
     <plugins>
diff --git a/maven-model-builder/src/test/resources/poms/inheritance/plugin-configuration-parent.xml b/maven-model-builder/src/test/resources/poms/inheritance/plugin-configuration-parent.xml
index 4f0db4a159..2b973a159e 100644
--- a/maven-model-builder/src/test/resources/poms/inheritance/plugin-configuration-parent.xml
+++ b/maven-model-builder/src/test/resources/poms/inheritance/plugin-configuration-parent.xml
@@ -31,6 +31,15 @@ under the License.
   <description>Model inheritance description</description>
   <url>http://www.apache.org/</url>
 
+  <mailingLists>
+    <mailingList>
+      <name>parent</name>
+      <post>post@mailing.list.com</post>
+      <subscribe>subscribe@mailing.list.com</subscribe>
+      <unsubscribe>unsubscribe@mailing.list.com</unsubscribe>
+    </mailingList>
+  </mailingLists>
+
   <build>
     <plugins>
       <plugin>