diff --git a/plugins/ktcore/KTColumns.inc.php b/plugins/ktcore/KTColumns.inc.php
index be27c70..a86fdd7 100644
--- a/plugins/ktcore/KTColumns.inc.php
+++ b/plugins/ktcore/KTColumns.inc.php
@@ -55,7 +55,8 @@ class AdvancedTitleColumn extends AdvancedColumn {
         /* this chack has to be done so that any titles longer than 40 characters is not displayed incorrectly.
          as mozilla cannot wrap text without white spaces */
         if(strlen($aDataRow["document"]->getName()) > 40){
-            $outStr = htmlentities(substr($aDataRow["document"]->getName(), 0, 40)."...", ENT_NOQUOTES, 'UTF-8');
+        	mb_internal_encoding("UTF-8");
+            $outStr = htmlentities(mb_substr($aDataRow["document"]->getName(), 0, 40)."...", ENT_NOQUOTES, 'UTF-8');
         }else{
             $outStr = htmlentities($aDataRow["document"]->getName(), ENT_NOQUOTES, 'UTF-8');
         }