Index: maven-ear-plugin-2.3/src/main/java/org/apache/maven/plugin/ear/AbstractEarModule.java
===================================================================
--- maven-ear-plugin-2.3/src/main/java/org/apache/maven/plugin/ear/AbstractEarModule.java	(revision 548508)
+++ maven-ear-plugin-2.3/src/main/java/org/apache/maven/plugin/ear/AbstractEarModule.java	(working copy)
@@ -59,6 +59,8 @@
 
     protected Boolean unpack = null;
 
+    protected String moduleId;
+
     /**
      * Empty constructor to be used when the module
      * is built based on the configuration.
@@ -212,6 +214,10 @@
         return unpack;
     }
 
+    public String getModuleId() {
+	    return moduleId;
+    }
+
     public String toString()
     {
         StringBuffer sb = new StringBuffer();
Index: maven-ear-plugin-2.3/src/main/java/org/apache/maven/plugin/ear/EjbModule.java
===================================================================
--- maven-ear-plugin-2.3/src/main/java/org/apache/maven/plugin/ear/EjbModule.java	(revision 548508)
+++ maven-ear-plugin-2.3/src/main/java/org/apache/maven/plugin/ear/EjbModule.java	(working copy)
@@ -45,6 +45,9 @@
     public void appendModule( XMLWriter writer, String version )
     {
         writer.startElement( MODULE_ELEMENT );
+        if (getModuleId() != null) {
+            writer.addAttribute("id", getModuleId());
+        }
         writer.startElement( EJB_MODULE );
         writer.writeText( getUri() );
         writer.endElement();