diff --git a/weave/minimal/misc.py b/weave/minimal/misc.py
index 81b2a34..8b18717 100644
--- a/weave/minimal/misc.py
+++ b/weave/minimal/misc.py
@@ -3,6 +3,6 @@
 
 from werkzeug import Response
 
-def captcha_html(environ, request, version):
+def captcha_html(app, environ, request, version):
     return Response('<img src="http://posativ.org/scratch.png" \
     width="298px" height="130" style="overflow-x: scroll; overflow-y: hidden;" />', content_type="text/html")