diff --git a/sample-etc_ddclient.conf b/sample-etc_ddclient.conf
index 92eb989..6922ad3 100644
--- a/sample-etc_ddclient.conf
+++ b/sample-etc_ddclient.conf
@@ -25,6 +25,8 @@ mail-failure=root			# mail failed update msgs to root
 pid=/var/run/ddclient.pid		# record PID in file.
 ssl=yes					# use ssl-support.  Works with
 					# ssl-library
+# postscript=script			# run script after updating.  The
+					# new IP is added as argument.
 #
 #use=watchguard-soho,        fw=192.168.111.1:80	# via Watchguard's SOHO FW
 #use=netopia-r910,           fw=192.168.111.1:80	# via Netopia R910 FW