diff --git a/web/ajax/log.php b/web/ajax/log.php
index 282303a87..2a5aa039e 100644
--- a/web/ajax/log.php
+++ b/web/ajax/log.php
@@ -15,7 +15,7 @@ switch ( $_REQUEST['task'] ) {
 
       $file = !empty($_POST['file']) ? preg_replace( '/\w+:\/\/[\w.:]+\//', '', $_POST['file'] ) : '';
       if ( !empty( $_POST['line'] ) )
-        $line = $_POST['line'];
+        $line = validInt($_POST['line']);
       else
         $line = NULL;