diff --git a/javadoc/src/plugin-test/project.xml b/javadoc/src/plugin-test/project.xml
index 93910a5a..d50a0ff0 100644
--- a/javadoc/src/plugin-test/project.xml
+++ b/javadoc/src/plugin-test/project.xml
@@ -54,5 +54,13 @@
 
   <build>
     <sourceDirectory>src/main</sourceDirectory>
+    <sourceModifications>
+      <sourceModification>
+        <className>org.apache.maven.Dummy</className>
+        <excludes>
+          <exclude>**/Dummy4.*</exclude>
+        </excludes>
+      </sourceModification>
+    </sourceModifications>
   </build>
 </project>
\ No newline at end of file