diff --git a/examples_ptx/bitonicSort/bitonicSort.cpp b/examples_ptx/bitonicSort/bitonicSort.cpp
index 21778d18..9ab8dc49 100644
--- a/examples_ptx/bitonicSort/bitonicSort.cpp
+++ b/examples_ptx/bitonicSort/bitonicSort.cpp
@@ -1,38 +1,3 @@
-/*
-  Copyright (c) 2013, Durham University
-  All rights reserved.
-
-  Redistribution and use in source and binary forms, with or without
-  modification, are permitted provided that the following conditions are
-  met:
-
-    * Redistributions of source code must retain the above copyright
-      notice, this list of conditions and the following disclaimer.
-
-    * Redistributions in binary form must reproduce the above copyright
-      notice, this list of conditions and the following disclaimer in the
-      documentation and/or other materials provided with the distribution.
-
-    * Neither the name of Durham University nor the names of its
-      contributors may be used to endorse or promote products derived from
-      this software without specific prior written permission.
-
-
-   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
-   IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
-   TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
-   PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
-   OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
-   EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
-   PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
-   PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
-   LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
-   NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-   SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.  
-*/
-
-/* Author: Tomasz Koziara */
-
 #include <cstdio>
 #include <cstdlib>
 #include <algorithm>
@@ -41,11 +6,16 @@
 #include <iomanip>
 #include "../timing.h"
 #include "../ispc_malloc.h"
-#include "sort_ispc.h"
+#include "bitonicSort_ispc.h"
 
-using namespace ispc;
-
-extern void sort_serial (int n, unsigned int code[], int order[]);
+extern void bitonicSort_serial (
+    int dstKey[],
+    int dstVal[],
+    int srcKey[],
+    int srcVal[],
+    const int batchSize,
+    const int arrayLength,
+    const int dir);
 
 /* progress bar by Ross Hemsley;
  * http://www.rosshemsley.co.uk/2011/02/creating-a-progress-bar-in-c-or-any-other-console-app/ */