diff --git a/mod/forum/lang/en/forum.php b/mod/forum/lang/en/forum.php
index 6e3711dd4df..684390a4759 100644
--- a/mod/forum/lang/en/forum.php
+++ b/mod/forum/lang/en/forum.php
@@ -238,7 +238,6 @@ $string['noattachments'] = 'There are no attachments to this post';
 $string['nodiscussions'] = 'There are no discussion topics yet in this forum';
 $string['nodiscussionsstartedby'] = 'No discussions started by this user';
 $string['noguestpost'] = 'Sorry, guests are not allowed to post.';
-$string['noguestsubscribe'] = 'Sorry, guests are not allowed to subscribe to receive forum postings by email.';
 $string['noguesttracking'] = 'Sorry, guests are not allowed to set tracking options.';
 $string['nomorepostscontaining'] = 'No more posts containing \'{$a}\' were found';
 $string['nonews'] = 'No news has been posted yet';
@@ -340,6 +339,7 @@ $string['startedby'] = 'Started by';
 $string['subject'] = 'Subject';
 $string['subscribe'] = 'Subscribe to this forum';
 $string['subscribeall'] = 'Subscribe everyone to this forum';
+$string['subscribeenrolledonly'] = 'Sorry, only enrolled users are allowed to subscribe to receive forum postings by email.';
 $string['subscribed'] = 'Subscribed';
 $string['subscribenone'] = 'Unsubscribe everyone from this forum';
 $string['subscribers'] = 'Subscribers';
diff --git a/mod/forum/subscribe.php b/mod/forum/subscribe.php
index 9d3fbb3398b..9d7345af17a 100644
--- a/mod/forum/subscribe.php
+++ b/mod/forum/subscribe.php
@@ -78,7 +78,7 @@ if (!is_enrolled($context)) {   // Guests and visitors can't subscribe - only en
     $PAGE->set_title($course->shortname);
     $PAGE->set_heading($course->fullname);
     echo $OUTPUT->header();
-    echo $OUTPUT->confirm(get_string('noguestsubscribe', 'forum').'<br /><br />'.get_string('liketologin'),
+    echo $OUTPUT->confirm(get_string('subscribeenrolledonly', 'forum').'<br /><br />'.get_string('liketologin'),
                  get_login_url(), new moodle_url('/mod/forum/view.php', array('f'=>$id)));
     echo $OUTPUT->footer();
     exit;