--- a/buildout.cfg	Thu Jul 13 10:49:31 2017 +0200
+++ b/buildout.cfg	Thu Jul 13 11:07:14 2017 +0200
@@ -20,6 +20,7 @@
 src = src
 develop =
     .
+    ../ext/lingua
     ../pyams_catalog
     ../pyams_file
     ../pyams_form