diff --git a/public/forums.php b/public/forums.php
index b24235af..2b703ea5 100644
--- a/public/forums.php
+++ b/public/forums.php
@@ -421,7 +421,7 @@ if ($action == "post")
 		sql_query("UPDATE posts SET body=".sqlesc($body).", editdate=".sqlesc($date).", editedby=".sqlesc($CURUSER['id'])." WHERE id=".sqlesc($id)) or sqlerr(__FILE__, __LINE__);
 		$Cache->delete_value('post_'.$postid.'_content');
         //send pm
-        $postUrl = sprintf('[url=[siteurl]forums.php?action=viewtopic&topicid=%s&page=p%s#pid%s]%s[/url]', $topicid, $id, $id, $topicInfo->subject);
+        $postUrl = sprintf('[url=[siteurl]/forums.php?action=viewtopic&topicid=%s&page=p%s#pid%s]%s[/url]', $topicid, $id, $id, $topicInfo->subject);
         if (!empty($postInfo->userid) && $postInfo->userid != $CURUSER['id']) {
             $receiver = $postInfo->user;
             $locale = $receiver->locale;
@@ -467,7 +467,7 @@ if ($action == "post")
 		$postid = mysql_insert_id() or die($lang_forums['std_post_id_not_available']);
 		//send pm
         $topicInfo = \App\Models\Topic::query()->findOrFail($topicid);
-        $postUrl = sprintf('[url=[siteurl]forums.php?action=viewtopic&topicid=%s&page=p%s#pid%s]%s[/url]', $topicid, $postid, $postid, $topicInfo->subject);
+        $postUrl = sprintf('[url=[siteurl]/forums.php?action=viewtopic&topicid=%s&page=p%s#pid%s]%s[/url]', $topicid, $postid, $postid, $topicInfo->subject);
 
 		if ($type == 'reply') {
 			/** @var \App\Models\User $receiver */