diff --git a/hbc b/hbc
index 1f73857..3463bce 100755
--- a/hbc
+++ b/hbc
@@ -1,13 +1,6 @@
 #!/usr/bin/env python
 # $Id: hbc,v 1.9 2012/03/29 02:08:36 andreas Exp $
 
-# require on Linux
-#	python-filelock 
-#	python-daemon vs 1.61 or >
-# on *bsd
-#	py27-lockfile 
-# 	py-27-daemon
-# or run  sudo easy_install-2.7 lockfile daemon
 import sys
 import time
 import socket
@@ -18,9 +11,22 @@ import string
 import select
 import errno
 import traceback
-import lockfile 
-import daemon
-import daemon.pidfile
+
+try:
+	import lockfile 
+	import daemon
+	import daemon.pidfile
+except:
+	print """
+ require on Linux
+	python-filelock 
+	python-daemon vs 1.61 or >
+ on *bsd
+	py27-lockfile 
+ 	py27-daemon
+ or run  sudo easy_install-2.7 lockfile python-daemon"""
+	sys.exit(1)
+
 import syslog