diff --git a/Modules/SceneSerialization/BaseDataSerializer/mitkImageSerializer.cpp b/Modules/SceneSerialization/BaseDataSerializer/mitkImageSerializer.cpp
index 90923834de..be0f18ff49 100644
--- a/Modules/SceneSerialization/BaseDataSerializer/mitkImageSerializer.cpp
+++ b/Modules/SceneSerialization/BaseDataSerializer/mitkImageSerializer.cpp
@@ -1,72 +1,71 @@
 /*===================================================================
 
 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 "mitkImageSerializer.h"
 
 #include "mitkImageWriter.h"
 #include <Poco/Path.h>
 
 MITK_REGISTER_SERIALIZER(ImageSerializer)
 
 mitk::ImageSerializer::ImageSerializer()
 {
 }
 
 mitk::ImageSerializer::~ImageSerializer()
 {
 }
 
 std::string mitk::ImageSerializer::Serialize()
 {
   const Image* image = dynamic_cast<const Image*>( m_Data.GetPointer() );
   if (!image)
   {
     MITK_ERROR << " Object at " << (const void*) this->m_Data
               << " is not an mitk::Image. Cannot serialize as image.";
     return "";
   }
 
   std::string filename( this->GetUniqueFilenameInWorkingDirectory() );
 std::cout << "creating file " << filename << " in " << m_WorkingDirectory << std::endl;
   filename += "_";
   filename += m_FilenameHint;
 
   std::string fullname(m_WorkingDirectory);
   fullname += Poco::Path::separator();
   fullname += filename;
 
   try
   {
     ImageWriter::Pointer writer = ImageWriter::New();
     writer->SetFileName( fullname );
     // was previously .pic, but due to IpPic-removal from core, the current standard file ending ist .nrrd
     writer->SetExtension(".nrrd");
     writer->SetInput( const_cast<Image*>(image) ); // bad writer design??
     writer->Write();
     fullname = writer->GetFileName();
-    fullname.append(writer->GetFileExtension());
   }
   catch (std::exception& e)
   {
     MITK_ERROR << " Error serializing object at " << (const void*) this->m_Data
               << " to "
               << fullname
               << ": "
               << e.what();
     return "";
   }
   return Poco::Path(fullname).getFileName();// + ".pic";
 }