diff --git a/THANKS b/THANKS
index 2716ab568..ba603cc66 100644
--- a/THANKS
+++ b/THANKS
@@ -1,103 +1,106 @@
 CDS Invenio THANKS
 ==================
 
 Revision: $Id$
 
 Several people outside the CDS Invenio Development Team 
 contributed to the project:
 
   - Thierry Thomas <thierry@FreeBSD.org>
     Patches for compiling old CDSware 0.3.x sources on FreeBSD.
   
   - Guido Pelzer <guido.pelzer@web.de>
     Contributions to the German translation.  German stopword list.
   
   - Valerio Gracco <valerio.gracco@cern.ch>
     Contributions to the Italian translation.
   
   - Tullio Basaglia <tullio.basaglia@cern.ch>
     Contributions to the Italian translation.
   
   - Flavio C. Coelho <fccoelho@fiocruz.br>
     Contributions to the Portuguese translation.
     
   - Lyuba Vasilevskaya <lyubov.vassilevskaya@cern.ch>
     Contributions to the Russian translation.
   
   - Maria Gomez Marti <maria.gomez.marti@cern.ch>
     Contributions to the Spanish translation.
 
   - Magaly Bascones Dominguez <magaly.bascones.dominguez@cern.ch>
     Contributions to the Spanish translation.
 
   - Urban Andersson <urban.andersson@hb.se>
     Contributions to the Swedish translation.
 
   - Eric Grand <eric.grand@rero.ch>
     Contributions to the French translation.
 
   - Theodoros Theodoropoulos <theod@physics.auth.gr>
     Contributions to the Greek translation, Greek stopword list.
 
   - Vasyl Ostrovskyi <vo@imath.kiev.ua>
     Contributions to the Ukrainian translation.   
 
   - Ferran Jorba <Ferran.Jorba@uab.cat>
     Contributions to the Catalan and Spanish translations.  Cleanup of
     the old PHP-based BibFormat Admin Guide.  Several minor patches.
 
   - Beatriu Piera <Beatriz.Piera@uab.es>
     Translation of the Search Guide into Catalan and Spanish.
 
   - Anonymous contributor (name withheld by request)
     Contributions to the Japanese translation.
 
   - Anonymous contributor (name withheld by request)
     Contributions to the Spanish translation.
 
   - Alen Vodopijevec <alen@irb.hr>
     Contributions to the Croatian translation.
 
   - Jasna Marković <jmarkov@irb.hr>
     Contributions to the Croatian translation.
 
   - Kam-ming Ku <kmku@hkusua.hku.hk>
     Contributions to the Chinese translations (zh_CN, zh_TW). 
 
   - Benedikt Koeppel <be.public@gmail.com>
     Contributions to the German translation.
 
   - Toru Tsuboyama <toru.tsuboyama@kek.jp>
     Contributions to the Japanese translation.
 
   - Mike Marino <mmarino@gmail.com>
     Several minor patches and suggestions.
 
   - Zbigniew Szklarz <zszklarz@student.agh.edu.pl>
     Contributions to the Polish translation.    
 
   - Iaroslav Gaponenko <adrahil@gmail.com>
     Contributions to the Russian translation.    
 
   - Yana Osborne <ianna.osborne@cern.ch>
     Contributions to the Russian translation.    
 
+  - Zbigniew Leonowicz <leonowicz@ieee.org>
+    Contributions to the Polish translation.    
+    
 The web session management and the URL handler were inspired by the
 Quixote Web Framework which is ``Copyright (c) 2004 Corporation for
 National Research Initiatives; All Rights Reserved''.
 <http://www.quixote.ca/>
 
 Javascript Quicktags scripts from Alex King are used to provide
 additional capabilities to the edition of BibFormat templates through
 the web admin interface.  
 <http://www.alexking.org>
 
 The indexer engine uses the Martin Porter Stemming Algorithm and its
 Vivake Gupta free Python implementation.
 <http://tartarus.org/~martin/PorterStemmer/>
 
 The CSS style for rounded corners box used in detailed record pages 
 adapted from Francky Lleyneman liquidcorners CSS.
 <http://home.tiscali.nl/developerscorner/liquidcorners/liquidcorners.htm>
 
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