diff --git a/apps/routerconsole/java/src/net/i2p/router/news/NewsXMLParser.java b/apps/routerconsole/java/src/net/i2p/router/news/NewsXMLParser.java
index 841dba9b495ec5aa2734178f5493b54e8643c736..01ffe4d945d34f28bc01ad4c0dbc4f3db200f12a 100644
--- a/apps/routerconsole/java/src/net/i2p/router/news/NewsXMLParser.java
+++ b/apps/routerconsole/java/src/net/i2p/router/news/NewsXMLParser.java
@@ -432,6 +432,10 @@ public class NewsXMLParser {
     }
 
     public static void main(String[] args) {
+        if (args.length != 1) {
+            System.err.println("Usage: NewsXMLParser file.xml");
+            System.exit(1);
+        }
         try {
             I2PAppContext ctx = new I2PAppContext();
             Debug.initialize(ctx);