diff --git a/pandora_agents/unix/ChangeLog b/pandora_agents/unix/ChangeLog
index 3a4a07aa79..c373ef1d49 100644
--- a/pandora_agents/unix/ChangeLog
+++ b/pandora_agents/unix/ChangeLog
@@ -1,3 +1,7 @@
+2014-08-07  Ramon Novoa  <rnovoa@artica.es>
+
+	* pandora_agent_daemon: Fixes the ps call on HP-UX.
+
 2014-06-04  Koichiro KIKUCHI <koichiro@rworks.jp>
 
 	* pandora_agent: Allow spaces in module group names.
diff --git a/pandora_agents/unix/pandora_agent_daemon b/pandora_agents/unix/pandora_agent_daemon
index b8741c2ad9..78aa73afed 100755
--- a/pandora_agents/unix/pandora_agent_daemon
+++ b/pandora_agents/unix/pandora_agent_daemon
@@ -34,7 +34,7 @@ pidof_pandora () {
 	OS_NAME=`uname -s`
 	if [ $OS_NAME = "HP-UX" ]
 	then
-		PANDORA_PID=`ps -ex | grep "$DAEMON $PANDORA_PATH" | grep -v grep | head -1 | awk '{ print $1 }'`
+		PANDORA_PID=`ps -ef | grep "/usr/bin/perl /opt/PandoraFMS/usr/bin/pandora_agent" | grep -v grep | awk '{print $2}'`
 	else
 		if [ "$OS_NAME" = "SunOS" ]
 		then