--- orig/planner-gnus.el
+++ mod/planner-gnus.el
@@ -135,6 +135,10 @@
       (gnus-group-select-group)
       (gnus-summary-goto-article article))))
 
+(defun planner-gnus-resolve-url (id)
+  "A Gnus ID should not be displayed."
+  "")
+
 (fset 'planner-get-from 'planner-gnus-get-address)
 (fset 'planner-get-message-id 'planner-gnus-get-message-id)
 (custom-add-option 'planner-annotation-functions 'planner-gnus-annotation-from-summary)
@@ -143,6 +147,7 @@
 (add-hook 'planner-annotation-functions 'planner-gnus-annotation-from-message)
 (add-hook 'planner-browse-url-functions 'planner-gnus-browse-url)
 (planner-option-customized 'planner-url-list (append (list "gnus://") planner-url-list))
+(add-to-list 'planner-resolve-url-table '("gnus://" . planner-gnus-resolve-url))
 
 (provide 'planner-gnus)