diff --git a/src/gui/client/main-window.lisp b/src/gui/client/main-window.lisp
index 7d76181..f983e18 100644
--- a/src/gui/client/main-window.lisp
+++ b/src/gui/client/main-window.lisp
@@ -1778,7 +1778,9 @@ local file paths."
                                  (bookmark-button      (_ "add or remove bookmark"))
                                  (tour-button          (_ "go to the next link in tour"))
                                  (subscribe-button     (_ "subscribe/unsubscribe to this gemlog"))
-                                 (inline-images-button (_ "inline images")))
+                                 (inline-images-button (_ "inline images"))
+                                 (toc-button           (_ "go to gempub TOC")))
+
     (gui:grid back-button          0  0 :sticky :nsw)
     (gui:grid reload-button        0  1 :sticky :nsw)
     (gui:grid up-button            0  2 :sticky :nsw)