diff --git a/machine-list.html b/machine-list.html
index ce0809c..5308305 100644
--- a/machine-list.html
+++ b/machine-list.html
@@ -1,6 +1,7 @@
 <div id='machinelist'>
 			Select the machine you want to build your rootfs image for:<br/><br/>
 			<select name='machine' onChange='showValues();'>
+				<option value="invalid">--------</option>
 				<option value="beagleboard">beagleboard</option>
 				<option value="beaglebone">beaglebone</option>
 				<option value="qemuarm">qemuarm</option>
diff --git a/scripts/extract-supported-machines.sh b/scripts/extract-supported-machines.sh
index eb6c41a..611f10d 100755
--- a/scripts/extract-supported-machines.sh
+++ b/scripts/extract-supported-machines.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 
 # Narcissus - Online image builder for the angstrom distribution
-# Koen Kooi (c) 2010-2011 all rights reserved 
+# Koen Kooi (c) 2010-2012 all rights reserved 
 
 # This script extracts metadata from the cache dir to use in e.g. manifests
 
@@ -12,6 +12,7 @@ fi
 echo "<div id='machinelist'>" > machine-list.html
 echo "			Select the machine you want to build your rootfs image for:<br/><br/>" >> machine-list.html
 echo "			<select name='machine' onChange='showValues();'>" >> machine-list.html
+echo "				<option value=\"invalid\">--------</option>" >> machine-list.html
 
 for machine in $(find conf/ -name "arch.conf" | awk -F/ '{print $2}' | sort | uniq) ; do
 	echo "				<option value=\"$machine\">$machine</option>" >> machine-list.html