diff --git a/Doc/changelog.docu b/Doc/changelog.docu
index 6a39de53..4a15e05f 100644
--- a/Doc/changelog.docu
+++ b/Doc/changelog.docu
@@ -8,7 +8,7 @@
 <!-- --------------------------------------------------------------------- -->
 
 
-<tr valign=top><td><b>2.1</b> (2012/01/24,Rev.530)</td><td>
+<tr valign=top><td><b>2.1</b> (2012/01/24,Rev.531)</td><td>
 
 <b>Core</b>
 <ul>
diff --git a/src/Unittests/unittests_trimesh_collapse.hh b/src/Unittests/unittests_trimesh_collapse.hh
index 02d8b416..7889e6d4 100644
--- a/src/Unittests/unittests_trimesh_collapse.hh
+++ b/src/Unittests/unittests_trimesh_collapse.hh
@@ -349,7 +349,7 @@ TEST_F(OpenMeshCollapse, CollapseComplex) {
   mesh_.clear();
 
   // Add some vertices
-  Mesh::VertexHandle vhandle[4];
+  Mesh::VertexHandle vhandle[5];
 
   // Setup a pyramid
   vhandle[0] = mesh_.add_vertex(Mesh::Point(0 , 0, 0));