diff --git a/src/infrastructure/customfield/standard/PhabricatorStandardCustomFieldSelect.php b/src/infrastructure/customfield/standard/PhabricatorStandardCustomFieldSelect.php
index db84fc82e8..036b7301a1 100644
--- a/src/infrastructure/customfield/standard/PhabricatorStandardCustomFieldSelect.php
+++ b/src/infrastructure/customfield/standard/PhabricatorStandardCustomFieldSelect.php
@@ -148,4 +148,9 @@ final class PhabricatorStandardCustomFieldSelect
     return new ConduitStringParameterType();
   }
 
+  protected function newBulkParameterType() {
+    return id(new BulkSelectParameterType())
+      ->setOptions($this->getOptions());
+  }
+
 }