diff --git a/handlers/handler_filter.inc b/handlers/handler_filter.inc
index db0a78f..88e1ae9 100644
--- a/handlers/handler_filter.inc
+++ b/handlers/handler_filter.inc
@@ -8,21 +8,6 @@
 class SarniaViewsHandlerFilter extends SearchApiViewsHandlerFilter {
 
   /**
-   * Provide a list of options for the operator form.
-   *
-   * There is a patch in the Search API issue queue that adds the 'is null' and
-   * 'is not null' operators to the Search API Views filter handler; if that
-   * patch is committed, this method can be removed.
-   * @see http://drupal.org/node/1318904#comment-5817206
-   */
-  public function operator_options() {
-    $options = parent::operator_options();
-    $options['IS NULL'] = t('Is null');
-    $options['IS NOT NULL'] = t('Is not null');
-    return $options;
-  }
-
-  /**
    * Specifies the options this handler uses.
    */
   public function option_definition() {
@@ -81,20 +66,7 @@ class SarniaViewsHandlerFilter extends SearchApiViewsHandlerFilter {
    */
   public function query() {
     $this->real_field = $this->options['solr_property'];
-    // Handle the custom 'is null' and 'is not null' operators.
-    // @see SarniaViewsHandlerFilter::operator_options()
-    // @see http://drupal.org/node/1318904#comment-5817206
-    switch ($this->operator) {
-      case 'IS NULL':
-        $this->query->condition($this->real_field, NULL, '=', $this->options['group']);
-        break;
-      case 'IS NOT NULL':
-        $this->query->condition($this->real_field, NULL, '!=', $this->options['group']);
-        break;
-
-      default:
-        parent::query();
-    }
+    parent::query();
   }
 
   /**