diff --git a/app/src/Lib/Match/ResultManager.php b/app/src/Lib/Match/ResultManager.php
index 11a11ef30..97d50785b 100644
--- a/app/src/Lib/Match/ResultManager.php
+++ b/app/src/Lib/Match/ResultManager.php
@@ -60,7 +60,7 @@ class ResultManager {
   
   public function add(array $attributes, string $rule=null) {
     if($rule) {
-      $successfulRules[] = $rule;
+      $this->successfulRules[] = $rule;
     }
     
     if(empty($attributes)) {