diff --git a/main/forum/viewthread_threaded.inc.php b/main/forum/viewthread_threaded.inc.php
index 49e5da61ad..2d68f2d48d 100644
--- a/main/forum/viewthread_threaded.inc.php
+++ b/main/forum/viewthread_threaded.inc.php
@@ -241,7 +241,7 @@ if (api_is_allowed_to_edit(false,true)  && !(api_is_course_coach() && $current_f
 	echo "<a href=\"".api_get_self()."?".api_get_cidreq()."&forum=".Security::remove_XSS($_GET['forum'])."&amp;thread=".Security::remove_XSS($_GET['thread'])."&amp;action=delete&amp;content=post&amp;id=".$rows[$display_post_id]['post_id']."\" onclick=\"javascript:if(!confirm('".addslashes(htmlentities(get_lang("DeletePost"),ENT_QUOTES,$charset))."')) return false;\">".icon('../img/delete.gif',get_lang('Delete'))."</a>\n";
 	display_visible_invisible_icon('post', $rows[$display_post_id]['post_id'], $rows[$display_post_id]['visible'],array('forum'=>Security::remove_XSS($_GET['forum']),'thread'=>Security::remove_XSS($_GET['thread']), 'post'=>Security::remove_XSS($_GET['post']) ));
 	echo "\n";
-	if (!isset($_GET['id'])) {
+	if (!isset($_GET['id']) && isset($_GET['post'])) {
 		echo "<a href=\"viewthread.php?".api_get_cidreq()."&forum=".Security::remove_XSS($_GET['forum'])."&amp;thread=".Security::remove_XSS($_GET['thread'])."&amp;origin=".$origin."&amp;action=move&amp;post=".$rows[$display_post_id]['post_id']."\">".icon('../img/deplacer_fichier.gif',get_lang('MovePost'))."</a>\n";	
 	}
 }