diff --git a/tailbone/templates/themes/falafel/base.mako b/tailbone/templates/themes/falafel/base.mako
index 1e996e6b..b50cfef7 100644
--- a/tailbone/templates/themes/falafel/base.mako
+++ b/tailbone/templates/themes/falafel/base.mako
@@ -369,7 +369,7 @@
                 </div>
             % endif
 
-            % if master.configurable and master.has_perm('configure'):
+            % if master and master.configurable and master.has_perm('configure'):
                 % if not request.matched_route.name.endswith('.configure'):
                     <div class="level-item">
                       <once-button type="is-primary"