diff --git a/Code/Ontology/Common/include/mapOntologyExceptions.h b/Code/Ontology/Common/include/mapOntologyExceptions.h
index 10370ad..1baf54a 100644
--- a/Code/Ontology/Common/include/mapOntologyExceptions.h
+++ b/Code/Ontology/Common/include/mapOntologyExceptions.h
@@ -1,85 +1,85 @@
 // -----------------------------------------------------------------------
 // MatchPoint - DKFZ translational registration framework
 //
 // Copyright c German Cancer Research Center DKFZ,
 // Software development for Integrated Diagnostics and Therapy SIDT.
 // ALL RIGHTS RESERVED.
 // See mapCopyright.txt or
 // http://www.dkfz.de/en/sidt/projects/MatchPoint/copyright.html
 //
 // This software is distributed WITHOUT ANY WARRANTY; without even
 // the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
 // PURPOSE.  See the above copyright notices for more information.
 //
 //------------------------------------------------------------------------
 
 
 #ifndef __MAP_EXCEPTIONS_H
 #define __MAP_EXCEPTIONS_H
 
 #include <stdexcept>
 #include "mapOntologyString.h"
 
 #include "mapMAPOntologyExports.h"
 
 namespace iro
 {
   namespace exceptions
   {
 
-    MAPOntology_EXPORT using InvalidArgument = ::std::invalid_argument;
+    using InvalidArgument = ::std::invalid_argument;
       
     /** @class InvalidIS
     * Exception class that is thrown when an problem correlated with
     * information spaces occures
     * @ingroup Exception*/
     class MAPOntology_EXPORT InvalidIS : public InvalidArgument
     {
     public:
       explicit InvalidIS (const String& what_arg);
     };
 
     /** @class InvalidMovingIS
     * Exception class that is thrown when an problem correlated with
     * moving information spaces occures
     * @ingroup Exception*/
     class MAPOntology_EXPORT InvalidMovingIS : public InvalidIS
     {
     public:
       explicit InvalidMovingIS (const String& what_arg);
     };
 
     /** @class InvalidTargetIS
     * Exception class that is thrown when an problem correlated with
     * target information spaces occures
     * @ingroup Exception*/
     class MAPOntology_EXPORT InvalidTargetIS : public InvalidIS
     {
     public:
       explicit InvalidTargetIS (const String& what_arg);
     };
 
    /** @class InvalidDataRepresentation
     * Exception class that is thrown when an problem correlated with
     * invalid data representation support occures
     * @ingroup Exception*/
     class MAPOntology_EXPORT InvalidDataRepresentation : public InvalidArgument
     {
     public:
       explicit InvalidDataRepresentation (const String& what_arg);
     };
 
     /** @class UndefinedElement
     * Exception class that is thrown when an element is used for
     * inference or integration that is not part of the ontology
     * @ingroup Exceptions*/
     class MAPOntology_EXPORT UndefinedElement : public InvalidArgument
     {
     public:
       explicit UndefinedElement (const String& what_arg);
     };
 
   } // end namespace exceptions
 } // end namespace iro
 
 #endif