diff --git a/stack/erp5.cfg b/stack/erp5.cfg
index d7e8ecfbfa770f2995da337d8b18688d345b8ee4..2a1953794e6157a1a68f78bb5126cb26d3b1abec 100644
--- a/stack/erp5.cfg
+++ b/stack/erp5.cfg
@@ -8,6 +8,7 @@ find-links =
     http://www.nexedi.org/static/packages/source/slapos.buildout/
     http://dist.repoze.org
     http://www.nexedi.org/static/packages/source/
+    http://www.owlfish.com/software/wsgiutils/download.html
 
 # Separate from site eggs
 allowed-eggs-from-site-packages =