Index: src/main/java/org/apache/maven/plugin/dependency/AbstractDependencyMojo.java
===================================================================
--- src/main/java/org/apache/maven/plugin/dependency/AbstractDependencyMojo.java	(revision 713529)
+++ src/main/java/org/apache/maven/plugin/dependency/AbstractDependencyMojo.java	(working copy)
@@ -192,7 +192,15 @@
             theLog.info( "Copying "
                 + ( this.outputAbsoluteArtifactFilename ? artifact.getAbsolutePath() : artifact.getName() ) + " to "
                 + destFile );
-            FileUtils.copyFile( artifact, destFile );
+
+            if ( artifact.isDirectory() )
+            {
+            	FileUtils.copyDirectoryStructureIfModified( artifact, destFile );
+            }
+            else
+            {
+            	FileUtils.copyFile( artifact, destFile );
+            }
 
         }
         catch ( Exception e )