diff --git a/build.xml b/build.xml
index 9842d741bf01054c45f2d01e2041d37779aa838a..f65525591bc1ce30441a9398adfbe703c3ce8e90 100644
--- a/build.xml
+++ b/build.xml
@@ -245,7 +245,7 @@
       group="fr.inrialpes.exmo.align"
       desc="Alignment server"
       main="fr.inrialpes.exmo.align.service.AlignmentService"
-      path="procalign.jar osgi/osgi-core.jar jade/jade.jar jade/iiop.jar jade/http.jar jdbc/mysql-connector-java.jar jdbc/postgresql-jdbc4.jar servlet/servlet-api.jar jetty/jetty.jar jetty/jetty-util.jar xerces/xercesImpl.jar lang/commons-lang3.jar">
+      path="procalign.jar osgi/osgi-core.jar jade/jade.jar jade/iiop.jar jade/http.jar jdbc/mysql-connector-java.jar jdbc/postgresql-jdbc4.jar servlet/servlet-api.jar jetty/jetty.jar jetty/jetty-util.jar gson/gson.jar xerces/xercesImpl.jar lang/commons-lang3.jar">
       <files>
 	<fileset dir="classes">
 	  <include name="fr/inrialpes/exmo/align/service/**/*.class"/>