--- a/mrtg-rrd.cgi
+++ b/mrtg-rrd.cgi
@@ -39,8 +39,17 @@
 use vars qw(@config_files @all_config_files %targets $config_time
 	%directories $version $imagetype);
 
-# EDIT THIS to reflect all your MRTG config files
-BEGIN { @config_files = qw(/home/fadmin/mrtg/cfg/mrtg.cfg); }
+BEGIN {
+  my $conffile = "/etc/mrtg-rrd.conf";
+  $conffile = "mrtg-rrd.conf" if ( -e "mrtg-rrd.conf" );
+  $conffile = $ENV{"MRTGRRDCONF"} if ( $ENV{"MRTGRRDCONF"} );
+  open CONF, $conffile or die "Cannot open mrtg-rrd.conf";
+  while (<CONF>) {
+    chop $_;
+    push @config_files, $_;
+  }
+close CONF;
+}
 
 $version = '0.7';
 
