diff --git a/centreon-plugins/src/process-service-perfdata b/centreon-plugins/src/process-service-perfdata
index fb3ccf7e6..5c8a73dce 100644
--- a/centreon-plugins/src/process-service-perfdata
+++ b/centreon-plugins/src/process-service-perfdata
@@ -1,36 +1,64 @@
-#! /bin/sh
-###################################################################
-# Centreon is developped with GPL Licence 2.0 
-#
-# GPL License: http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt
-#
-# Developped by : Julien Mathis - Romain Le Merlus 
-#                 Christophe Coraboeuf - Sugumaran Mathavarajan
-#
-###################################################################
-# This program is free software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License
-# as published by the Free Software Foundation; either version 2
-# of the License, or (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
+#! /usr/bin/perl -w
+################################################################################
+# Copyright 2005-2009 MERETHIS
+# Centreon is developped by : Julien Mathis and Romain Le Merlus under
+# GPL Licence 2.0.
 # 
-#    For information : contact@merethis.com
-####################################################################
+# This program is free software; you can redistribute it and/or modify it under 
+# the terms of the GNU General Public License as published by the Free Software 
+# Foundation ; either version 2 of the License.
+# 
+# This program is distributed in the hope that it will be useful, but WITHOUT ANY
+# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A 
+# PARTICULAR PURPOSE. See the GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License along with 
+# this program; if not, see <http://www.gnu.org/licenses>.
+# 
+# Linking this program statically or dynamically with other modules is making a 
+# combined work based on this program. Thus, the terms and conditions of the GNU 
+# General Public License cover the whole combination.
+# 
+# As a special exception, the copyright holders of this program give MERETHIS 
+# permission to link this program with independent modules to produce an executable, 
+# regardless of the license terms of these independent modules, and to copy and 
+# distribute the resulting executable under terms of MERETHIS choice, provided that 
+# MERETHIS also meet, for each linked independent module, the terms  and conditions 
+# of the license of that module. An independent module is a module which is not 
+# derived from this program. If you modify this program, you may extend this 
+# exception to your version of the program, but you are not obliged to do so. If you
+# do not wish to do so, delete this exception statement from your version.
+# 
+# For more information : contact@centreon.com
+# 
+# SVN : $URL$
+# SVN : $Id$
+#
+####################################################################################
 #
 # Script init
 #
 
+# Set perfdata file
+PERFFILE="@NAGIOS_VAR@/service-perfdata"
+
 # some parameters passed on command line
 TIMET=$1
 HOSTNAME=$2
 SERVICEDESC=$3
 OUTPUT=$4
 SERVICESTATE=$5
-PERFDATA=$6
-PERFFILE="@NAGIOS_VAR@/service-perfdata"
 
-/usr/bin/printf "%b" "$TIMET\t$HOSTNAME\t$SERVICEDESC\t$OUTPUT\t$SERVICESTATE\t$PERFDATA\n" >> $PERFFILE
+# Check if parameter 6 is defined
+if test $6
+then
+    PERFDATA=$6
+else
+    PERFDATA=0
+fi
+
+# Write data in perfdata file
+if test $PERFDATA != 0
+then
+    /usr/bin/printf "%b" "$TIMET\t$HOSTNAME\t$SERVICEDESC\t$OUTPUT\t$SERVICESTATE\t$PERFDATA\n" >> $PERFFILE
+fi