diff --git a/core/modules/views/lib/Drupal/views/Plugin/views/filter/String.php b/core/modules/views/lib/Drupal/views/Plugin/views/filter/String.php
index c80e39d..9e7f1a6 100644
--- a/core/modules/views/lib/Drupal/views/Plugin/views/filter/String.php
+++ b/core/modules/views/lib/Drupal/views/Plugin/views/filter/String.php
@@ -107,7 +107,7 @@ function operators() {
       'longerthan' => array(
         'title' => t('Length is longer than'),
         'short' => t('longer than'),
-        'method' => 'op_longer',
+        'method' => 'addLongerThan',
         'values' => 1,
       ),
     );
@@ -326,7 +326,7 @@ function op_shorter($field) {
     $this->query->add_where_expression($this->options['group'], "LENGTH($field) < $placeholder", array($placeholder => $this->value));
   }
 
-  function op_longer($field) {
+  function addLongerThan($field) {
     $placeholder = $this->placeholder();
     $this->query->add_where_expression($this->options['group'], "LENGTH($field) > $placeholder", array($placeholder => $this->value));
   }