diff --git a/ActivitySpamPlugin.php b/ActivitySpamPlugin.php
index 8a6ee89b3f..26a0f5c7a5 100644
--- a/ActivitySpamPlugin.php
+++ b/ActivitySpamPlugin.php
@@ -170,7 +170,7 @@ class ActivitySpamPlugin extends Plugin
         return false;
     }
 
-    function onEndShowNoticeOptions(&$nli)
+    function onEndShowNoticeOptions($nli)
     {
         $notice = $nli->notice;
         $out = $nli->out;