1 files changed, 3 insertions, 2 deletions
diff --git a/src/de/lmu/ifi/dbs/elki/utilities/datastructures/heap/Heap.java b/src/de/lmu/ifi/dbs/elki/utilities/datastructures/heap/Heap.java
index 2c278110..dad6f1d7 100644
--- a/src/de/lmu/ifi/dbs/elki/utilities/datastructures/heap/Heap.java
+++ b/src/de/lmu/ifi/dbs/elki/utilities/datastructures/heap/Heap.java
@@ -4,7 +4,7 @@ package de.lmu.ifi.dbs.elki.utilities.datastructures.heap;
  This file is part of ELKI:
  Environment for Developing KDD-Applications Supported by Index-Structures
 
- Copyright (C) 2013
+ Copyright (C) 2014
  Ludwig-Maximilians-Universität München
  Lehr- und Forschungseinheit für Datenbanksysteme
  ELKI Development Team
@@ -442,8 +442,9 @@ public class Heap<E> {
     }
 
     @Override
-    public void advance() {
+    public UnorderedIter advance() {
       pos++;
+      return this;
     }
 
     /**