diff --git a/module/VuFind/src/VuFind/Controller/MyResearchController.php b/module/VuFind/src/VuFind/Controller/MyResearchController.php
index e0b7978b55174d66acd897ee4cf43290888603d3..8b0b80e89c4fda49a674b4aeb73359ef330c0d09 100644
--- a/module/VuFind/src/VuFind/Controller/MyResearchController.php
+++ b/module/VuFind/src/VuFind/Controller/MyResearchController.php
@@ -1743,7 +1743,7 @@ class MyResearchController extends AbstractBase
                 );
             } else {
                 // After successful token verification, clear list to shrink session:
-                $this->csrf->trimTokenList(0);
+                $csrf->trimTokenList(0);
             }
             $user->delete(
                 $config->Authentication->delete_comments_with_user ?? true