diff --git a/kbox.kns/src/main/java/org/aksw/kbox/kns/KNSServer.java b/kbox.kns/src/main/java/org/aksw/kbox/kns/KNSServer.java
index 854a4fb..1f9825b 100644
--- a/kbox.kns/src/main/java/org/aksw/kbox/kns/KNSServer.java
+++ b/kbox.kns/src/main/java/org/aksw/kbox/kns/KNSServer.java
@@ -4,8 +4,8 @@
 
 public class KNSServer {
 	
-	URL url = null;
-	KNSTable table = null;
+	private URL url = null;
+	private KNSTable table = null;
 
 	public KNSServer(URL url) throws Exception {
 		this.url = url;