diff --git a/pandora_server/ChangeLog b/pandora_server/ChangeLog
index b8e30c9b1d..19252f7908 100644
--- a/pandora_server/ChangeLog
+++ b/pandora_server/ChangeLog
@@ -1,3 +1,8 @@
+2010-09-27  Junichi Satoh  <junichi@rworks.jp>
+
+	* FreeBSD/pandora_server, FreeBSD/tentacle_server: Changed PID
+	detection method to support "jail", FreeBSD virtualization.
+
 2010-09-24  Sergio Martin <sergio.martin@artica.es>
 
 	* util/pandora_manage.pl: Added the apply_policy
diff --git a/pandora_server/FreeBSD/pandora_server b/pandora_server/FreeBSD/pandora_server
index f8790d9de8..917c5cac92 100755
--- a/pandora_server/FreeBSD/pandora_server
+++ b/pandora_server/FreeBSD/pandora_server
@@ -38,7 +38,7 @@ procname="/usr/local/bin/perl"
 
 start_postcmd()
 {
-	PANDORA_PID=`ps auxww | grep $command | grep -v grep | head -1 | awk '{ print $2 }'`
+	PANDORA_PID=`pgrep -f -j none $mame`
 	echo $PANDORA_PID > $pidfile
 }
 
diff --git a/pandora_server/FreeBSD/tentacle_server b/pandora_server/FreeBSD/tentacle_server
index e3f3e05f94..3876ee17d1 100755
--- a/pandora_server/FreeBSD/tentacle_server
+++ b/pandora_server/FreeBSD/tentacle_server
@@ -38,7 +38,7 @@ procname="/usr/bin/perl"
 
 start_postcmd()
 {
-	TENTACLE_PID=`ps auxww | grep $command | grep -v grep | head -1 | awk '{ print $2 }'`
+	PANDORA_PID=`pgrep -f -j none $mame`
 	echo $TENTACLE_PID > $pidfile
 }