diff --git a/dashboard/print.php b/dashboard/print.php
index c311293..6122e65 100644
--- a/dashboard/print.php
+++ b/dashboard/print.php
@@ -17,6 +17,7 @@ if($art == 'B'){
              WHERE b.jndid=c.jndid
                AND a.jndid=b.jndid
                AND c.zsid=$zsid
+               AND lower(filename) LIKE '%.pdf'
              ORDER BY CAST(liednr AS UNSIGNED), liednr";
   $result = $db->query ($query)
    or die ("Cannot execute query");