diff --git a/Modules/IGT/IO/mitkNavigationDataSetWriterCSV.cpp b/Modules/IGT/IO/mitkNavigationDataSetWriterCSV.cpp
index 136f9b4f9d..80398fa31d 100644
--- a/Modules/IGT/IO/mitkNavigationDataSetWriterCSV.cpp
+++ b/Modules/IGT/IO/mitkNavigationDataSetWriterCSV.cpp
@@ -1,17 +1,29 @@
 /*===================================================================
 
 The Medical Imaging Interaction Toolkit (MITK)
 
 Copyright (c) German Cancer Research Center,
 Division of Medical and Biological Informatics.
 All rights reserved.
 
 This software is distributed WITHOUT ANY WARRANTY; without
 even the implied warranty of MERCHANTABILITY or FITNESS FOR
 A PARTICULAR PURPOSE.
 
 See LICENSE.txt or http://www.mitk.org for details.
 
 ===================================================================*/
 
-#include "mitkNavigationDataSetWriterCSV.h"
\ No newline at end of file
+#include "mitkNavigationDataSetWriterCSV.h"
+
+
+void mitk::NavigationDataSetWriterCSV::Write (std::string path, mitk::NavigationDataSet::Pointer data)
+{
+  MITK_WARN << "NavigationDataSetWriterCSV class not implemented yet: cannot write!";
+}
+
+mitk::NavigationDataSetWriterCSV::NavigationDataSetWriterCSV()
+{}
+
+mitk::NavigationDataSetWriterCSV::~NavigationDataSetWriterCSV()
+{}
diff --git a/Modules/IGT/IO/mitkNavigationDataSetWriterCSV.h b/Modules/IGT/IO/mitkNavigationDataSetWriterCSV.h
index 8836083c41..00253f6df7 100644
--- a/Modules/IGT/IO/mitkNavigationDataSetWriterCSV.h
+++ b/Modules/IGT/IO/mitkNavigationDataSetWriterCSV.h
@@ -1,28 +1,34 @@
 /*===================================================================
 
 The Medical Imaging Interaction Toolkit (MITK)
 
 Copyright (c) German Cancer Research Center,
 Division of Medical and Biological Informatics.
 All rights reserved.
 
 This software is distributed WITHOUT ANY WARRANTY; without
 even the implied warranty of MERCHANTABILITY or FITNESS FOR
 A PARTICULAR PURPOSE.
 
 See LICENSE.txt or http://www.mitk.org for details.
 
 ===================================================================*/
 
 
 #ifndef MITKNavigationDataSetWriterCSV_H_HEADER_INCLUDED_
 #define MITKNavigationDataSetWriterCSV_H_HEADER_INCLUDED_
 
+#include <mitkNavigationDataSet.h>
+
 namespace mitk {
-  class NavigationDataSetWriterCSV
+  class MitkIGT_EXPORT NavigationDataSetWriterCSV
   {
+  public:
+     NavigationDataSetWriterCSV();
+    ~NavigationDataSetWriterCSV();
 
+    virtual void Write (std::string path, mitk::NavigationDataSet::Pointer );
   };
 }
 
 #endif // MITKNavigationDataSetWriterCSV_H_HEADER_INCLUDED_