diff --git a/src/applications/harbormaster/step/HarbormasterBuildStepImplementation.php b/src/applications/harbormaster/step/HarbormasterBuildStepImplementation.php
index 26450722b9..64219b84c4 100644
--- a/src/applications/harbormaster/step/HarbormasterBuildStepImplementation.php
+++ b/src/applications/harbormaster/step/HarbormasterBuildStepImplementation.php
@@ -2,6 +2,8 @@
 
 abstract class HarbormasterBuildStepImplementation extends Phobject {
 
+  private $settings;
+
   public static function getImplementations() {
     return id(new PhutilSymbolLoader())
       ->setAncestorClass(__CLASS__)