diff --git a/mod/forum/lib.php b/mod/forum/lib.php
index 11d5b871a89..633be19178b 100644
--- a/mod/forum/lib.php
+++ b/mod/forum/lib.php
@@ -3529,7 +3529,7 @@ function forum_print_post($post, $discussion, $forum, &$cm, $course, $ownpost=fa
             $postcontent = highlight($highlight, $postcontent);
         }
         if (!empty($forum->displaywordcount)) {
-            $postcontent .= html_writer::tag('div', get_string('numwords', 'moodle', count_words($post->message)),
+            $postcontent .= html_writer::tag('div', get_string('numwords', 'moodle', count_words($postcontent)),
                 array('class'=>'post-word-count'));
         }
         $postcontent .= html_writer::tag('div', $attachedimages, array('class'=>'attachedimages'));
diff --git a/mod/forum/post.php b/mod/forum/post.php
index 4f79679b41b..5683a233fb9 100644
--- a/mod/forum/post.php
+++ b/mod/forum/post.php
@@ -683,6 +683,9 @@ if ($mform_post->is_cancelled()) {
     // WARNING: the $fromform->message array has been overwritten, do not use it anymore!
     $fromform->messagetrust  = trusttext_trusted($modcontext);
 
+    // Clean message text.
+    $fromform = trusttext_pre_edit($fromform, 'message', $modcontext);
+
     if ($fromform->edit) {           // Updating a post
         unset($fromform->groupid);
         $fromform->id = $fromform->edit;