diff --git a/dba/update-davical-database b/dba/update-davical-database
index 71b8580b..cde577bc 100755
--- a/dba/update-davical-database
+++ b/dba/update-davical-database
@@ -15,7 +15,7 @@ use Getopt::Long qw(:config permute);  # allow mixed args.
 my $debug  = 0;
 my $dbname = "davical";
 my $dbport = 5432;
-my $dbuser = "";
+my $dbuser = "davical_dba";
 my $dbpass = "";
 my $dbhost = "";
 my $appuser = "davical_app";
@@ -446,7 +446,13 @@ the correct minimum permissions for the web application user.
 
 Rather than providing a password on the command-line it is recommended
 that you use a .pgpass file in your home directory to hold the database
-password.  This file must be mode 600 to work.
+password.  This file must be mode 600 to work and should have lines
+like:
+
+hostname:port:database:username:password
+
+Each bit can be replaced by an asterisk, e.g:
+*:*:davical:davical_dba:53cr3t
 
 OPTHELP
     exit 0;