diff --git a/admin/bloglevelupgrade.php b/admin/bloglevelupgrade.php
index 1edc0b1899a..0c069c12011 100644
--- a/admin/bloglevelupgrade.php
+++ b/admin/bloglevelupgrade.php
@@ -90,7 +90,7 @@ function bloglevelupgrade_entries($blogentries, $forum, $cm, $groupid=-1) {
         $discussion->name = $blogentry->subject;
         $discussion->assessed = $forum->assessed;
         $discussion->message = $blogentry->summary;
-        $discussion->messageformat = $forum->introformat;
+        $discussion->messageformat = $blogentry->summaryformat;
         $discussion->messagetrust = 0;
         $discussion->attachments = 0;
         $discussion->mailnow = false;