Index: src/main/java/org/apache/maven/plugins/enforcer/BanDuplicateClasses.java
===================================================================
--- src/main/java/org/apache/maven/plugins/enforcer/BanDuplicateClasses.java	(revision 15047)
+++ src/main/java/org/apache/maven/plugins/enforcer/BanDuplicateClasses.java	(working copy)
@@ -177,7 +177,7 @@
                             "Unable to process dependency " + o.toString() + " due to " + e.getLocalizedMessage(), e );
                     }
                 }
-                else if ( file.isFile() && !"pom".equals( o.getType() ) )
+                else if ( file.isFile() && "jar".equals( o.getType() ) )
                 {
                     try
                     {