diff --git a/java/wspp/WsppPos.java b/java/wspp/WsppPos.java
index 163468d..df20d69 100644
--- a/java/wspp/WsppPos.java
+++ b/java/wspp/WsppPos.java
@@ -1,3 +1,5 @@
+package wspp;
+
 import java.io.*;
 import java.nio.charset.StandardCharsets;
 import java.util.*;