diff --git a/classes/observer.php b/classes/observer.php
index b507265..b0278d3 100644
--- a/classes/observer.php
+++ b/classes/observer.php
@@ -45,7 +45,7 @@ public static function subscribe($userid, $courseid) {
             JOIN {course_modules} cm ON cm.instance = n.id
             JOIN {modules} m ON m.id = cm.module
             JOIN {user_info_field} uif
-            ON uif.id = n.profilefield
+            ON uif.id = n.aboprofilefield
             JOIN {user_info_data} uid
             ON uid.fieldid = uif.id 
             JOIN {user} u
diff --git a/db/upgrade.php b/db/upgrade.php
index 4998b21..1bb67a1 100644
--- a/db/upgrade.php
+++ b/db/upgrade.php
@@ -393,7 +393,7 @@ function xmldb_newsletter_upgrade($oldversion)
 
         // Define field id to be added to newsletter.
         $table = new xmldb_table('newsletter');
-        $field = new xmldb_field('profilefield', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0', 'welcomemessageguestuser');
+        $field = new xmldb_field('aboprofilefield', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0', 'welcomemessageguestuser');
 
         // Conditionally launch add field id.
         if (!$dbman->field_exists($table, $field)) {