--- webform_mysql_views.module	Fri Jan 14 20:26:02 2011
+++ webform_mysql_views.module	Sat Jan 15 00:46:55 2011
@@ -414,7 +414,10 @@
   else {
     $errors = array();
     //Make sure site is using MySQL backend
-    if (substr($db_url, 0, 5) != 'mysql') {
+    if (!is_array($db_url)) {
+      $db_url = array('default' => $db_url); 
+    }
+    if (substr($db_url['default'], 0, 5) != 'mysql') {
       $errors[] = t("This module is only compatible with the MySQL backend.");
     }