diff --git a/src/main/java/org/jenkinsci/maven/plugins/hpi/RunMojo.java b/src/main/java/org/jenkinsci/maven/plugins/hpi/RunMojo.java
index be694d037..e0e73b363 100644
--- a/src/main/java/org/jenkinsci/maven/plugins/hpi/RunMojo.java
+++ b/src/main/java/org/jenkinsci/maven/plugins/hpi/RunMojo.java
@@ -560,6 +560,7 @@ public void checkPomConfiguration() throws MojoExecutionException {
     public void finishConfigurationBeforeStart() throws Exception {
         super.finishConfigurationBeforeStart();
         WebAppContext wac = getWebAppConfig();
+        wac.setAttribute("org.eclipse.jetty.server.webapp.WebInfIncludeJarPattern", ".*/classes/.*");
         // to allow the development environment to run multiple "mvn hpi:run" with different port,
         // use different session cookie names. Otherwise they can mix up. See
         // http://stackoverflow.com/questions/1612177/are-http-cookies-port-specific