diff --git a/add/data/xqm/eutil.xqm b/add/data/xqm/eutil.xqm
index 1d0cf76e..b9fb658e 100644
--- a/add/data/xqm/eutil.xqm
+++ b/add/data/xqm/eutil.xqm
@@ -224,7 +224,7 @@ declare function eutil:getPartLabel($measureOrPerfRes as node(), $type as xs:str
     let $dictKey := 'perfMedium.perfRes.' || functx:substring-before-if-contains($perfResLabel,'.')
 
     let $label :=
-        if(eutil:getLanguageString($dictKey, (), $lang)) then
+        if(eutil:getLanguageString($dictKey, (), $lang) != 'noValueFound') then
             (eutil:getLanguageString($dictKey, (), $lang))
         else
             ($perfResLabel)
@@ -270,7 +270,7 @@ declare function eutil:getLanguageString($key as xs:string, $values as xs:string
     let $string := functx:replace-multi($string, for $i in (0 to (count($values) - 1)) return concat('\{',$i,'\}'), $values)
 
     return
-        $string
+        if($string) then $string else 'noValueFound'
 
 };