diff --git a/src/main/java/JettyLauncher.java b/src/main/java/JettyLauncher.java
index 01245c2..74d280d 100644
--- a/src/main/java/JettyLauncher.java
+++ b/src/main/java/JettyLauncher.java
@@ -96,6 +96,9 @@
         }
         context.setTempDirectory(tmpDir);
 
+        // Disabling the directory listing feature.
+        context.setInitParameter("org.eclipse.jetty.servlet.Default.dirAllowed", "false");
+
         ProtectionDomain domain = JettyLauncher.class.getProtectionDomain();
         URL location = domain.getCodeSource().getLocation();