diff --git a/src/more_speech/nostr/events.clj b/src/more_speech/nostr/events.clj
index 2900017..22010e7 100644
--- a/src/more_speech/nostr/events.clj
+++ b/src/more_speech/nostr/events.clj
@@ -282,7 +282,8 @@
          root (get-reply-root event-state reply-to-or-nil)
          tags (concat (make-event-reference-tags reply-to-or-nil root)
                       (make-people-reference-tags event-state pubkey reply-to-or-nil)
-                      (make-subject-tag subject))
+                      (make-subject-tag subject)
+                      [[:client "more-speech"]])
          [content tags] (emplace-references text tags)
          body {:kind 1
                :tags tags