--- modules/profile/profile.module	Mon Jan 12 11:09:19 2009
+++ modules/profile/profile.module	Wed Jan 26 10:36:50 2011
@@ -392,7 +392,7 @@
         );
         break;
       case 'selection':
-        $options = $field->required ? array() : array('--');
+        $options = array('' => '');
         $lines = split("[\n\r]", $field->options);
         foreach ($lines as $line) {
           if ($line = trim($line)) {