diff --git a/js/client-chat.js b/js/client-chat.js
index f3c0f021b..3b5973e51 100644
--- a/js/client-chat.js
+++ b/js/client-chat.js
@@ -998,7 +998,7 @@
 					$messages.find('a').contents().unwrap();
 					if (row[2]) {
 						$messages.hide();
-						this.$chat.append('<div class="chatmessage-' + user + '"><button name="revealMessages" value="' + user + '"><small>Some messages were hidden, click here to restore them.</small></button></div>');
+						if (this.$chat.find('.chatmessage-' + user).length) this.$chat.append('<div class="chatmessage-' + user + '"><button name="revealMessages" value="' + user + '"><small>Some messages were hidden, click here to restore them.</small></button></div>');
 					}
 					break;