diff --git a/tailbone/config.py b/tailbone/config.py
index 9326a3cb..ee906149 100644
--- a/tailbone/config.py
+++ b/tailbone/config.py
@@ -49,7 +49,7 @@ class ConfigExtension(BaseExtension):
         configure_session(config, Session)
 
         # provide default theme selection
-        config.setdefault('tailbone', 'themes.keys', 'default, falafel')
+        config.setdefault('tailbone', 'themes.keys', 'default, butterball')
         config.setdefault('tailbone', 'themes.expose_picker', 'true')