diff --git a/tailbone/subscribers.py b/tailbone/subscribers.py
index c0d8a9c0..da28a13a 100644
--- a/tailbone/subscribers.py
+++ b/tailbone/subscribers.py
@@ -34,6 +34,7 @@ from rattail.db.auth import has_permission
 from pyramid import threadlocal
 from pyramid.security import authenticated_userid
 
+import tailbone
 from tailbone import helpers
 from tailbone.db import Session
 
@@ -78,6 +79,7 @@ def before_render(event):
     renderer_globals['h'] = helpers
     renderer_globals['url'] = request.route_url
     renderer_globals['rattail'] = rattail
+    renderer_globals['tailbone'] = tailbone
 
 
 def add_inbox_count(event):
diff --git a/tailbone/templates/themes/better/base.mako b/tailbone/templates/themes/better/base.mako
index 57fcc3bc..411550eb 100644
--- a/tailbone/templates/themes/better/base.mako
+++ b/tailbone/templates/themes/better/base.mako
@@ -128,5 +128,5 @@
 <%def name="header_logo()"></%def>
 
 <%def name="footer()">
-   powered by ${h.link_to("Rattail {}".format(rattail.__version__), 'https://rattailproject.org/', target='_blank')}
+   powered by ${h.link_to("Rattail {} / Tailbone {}".format(rattail.__version__, tailbone.__version__), 'https://rattailproject.org/', target='_blank')}
 </%def>