diff --git a/Rocksolid_Light/rocksolid/lib/message.inc.php b/Rocksolid_Light/rocksolid/lib/message.inc.php
index 2f41a17..27c6155 100644
--- a/Rocksolid_Light/rocksolid/lib/message.inc.php
+++ b/Rocksolid_Light/rocksolid/lib/message.inc.php
@@ -624,7 +624,7 @@ function message_show($group,$id,$attachment=0,$article_data=false,$maxlen=false
       show_header($head,$group,$local_poster);
 // X-Face
   if ($face = display_full_headers($head->number,$group,$head->name,$head->from,true)) {
-      $pngfile = '../tmp/face-'.preg_replace("/[^A-Za-z0-9 ]/", '', $head->id); 
+      $pngfile = '../tmp/face-'.hash('ripemd160', $face);
     if(file_exists($pngfile)) {
       echo '<img align="right" src="'.$pngfile.'">';
     } else {