Index: src/java/org/apache/ivy/plugins/parser/m2/PomModuleDescriptorParser.java
===================================================================
--- src/java/org/apache/ivy/plugins/parser/m2/PomModuleDescriptorParser.java	(revision 907975)
+++ src/java/org/apache/ivy/plugins/parser/m2/PomModuleDescriptorParser.java	(working copy)
@@ -116,7 +116,9 @@
         try {           
             PomReader domReader = new PomReader(descriptorURL, res);            
             domReader.setProperty("parent.version", domReader.getParentVersion());
+            domReader.setProperty("parent.groupId", domReader.getParentGroupId());
             domReader.setProperty("project.parent.version", domReader.getParentVersion());
+            domReader.setProperty("project.parent.groupId", domReader.getParentGroupId());
 
             Map pomProperties = domReader.getPomProperties();
             for (Iterator iter = pomProperties.entrySet().iterator(); iter.hasNext();) {
Index: test/java/org/apache/ivy/plugins/parser/m2/test-parent.groupid.pom
===================================================================
--- test/java/org/apache/ivy/plugins/parser/m2/test-parent.groupid.pom	(revision 0)
+++ test/java/org/apache/ivy/plugins/parser/m2/test-parent.groupid.pom	(revision 0)
@@ -0,0 +1,36 @@
+<?xml version="1.0"?>
+<!--
+   Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+   distributed with this work for additional information
+   regarding copyright ownership.  The ASF licenses this file
+   to you under the Apache License, Version 2.0 (the
+   "License"); you may not use this file except in compliance
+   with the License.  You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing,
+   software distributed under the License is distributed on an
+   "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+   KIND, either express or implied.  See the License for the
+   specific language governing permissions and limitations
+   under the License.    
+-->
+<project>
+  <parent>
+    <artifactId>test-parent</artifactId>
+    <groupId>org.apache</groupId>
+    <version>1.0</version>
+  </parent>
+  <modelVersion>4.0.0</modelVersion>
+  <artifactId>test</artifactId>
+  <name>Test Module for Ivy M2 parsing</name>
+  <groupId>${parent.groupId}</groupId>
+  <version>1.0</version>
+  <url>http://ivy.jayasoft.org/</url>
+  <organization>
+    <name>Jayasoft</name>
+    <url>http://www.jayasoft.org/</url>
+  </organization>
+</project>
Index: test/java/org/apache/ivy/plugins/parser/m2/PomModuleDescriptorParserTest.java
===================================================================
--- test/java/org/apache/ivy/plugins/parser/m2/PomModuleDescriptorParserTest.java	(revision 907975)
+++ test/java/org/apache/ivy/plugins/parser/m2/PomModuleDescriptorParserTest.java	(working copy)
@@ -221,6 +221,20 @@
         assertEquals("test", artifact[0].getName());
     }
 
+    public void testParentGroupId() throws Exception {
+        ModuleDescriptor md = PomModuleDescriptorParser.getInstance().parseDescriptor(
+            settings, getClass().getResource("test-parent.groupid.pom"), false);
+        assertNotNull(md);
+
+        ModuleRevisionId mrid = ModuleRevisionId.newInstance("org.apache", "test", "1.0");
+        assertEquals(mrid, md.getModuleRevisionId());
+
+        Artifact[] artifact = md.getArtifacts("master");
+        assertEquals(1, artifact.length);
+        assertEquals(mrid, artifact[0].getModuleRevisionId());
+        assertEquals("test", artifact[0].getName());
+    }
+
     public void testProjectParentVersion() throws Exception {
         ModuleDescriptor md = PomModuleDescriptorParser.getInstance().parseDescriptor(
             settings, getClass().getResource("test-project.parent.version.pom"), false);