diff --git a/MANIFEST.in b/MANIFEST.in
index 40af2c570..bca6f0664 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -1,3 +1,3 @@
 include README.rst COPYING requirements.txt
-recursive-include modoboa *.html *.js *.css *.png *.po *.mo
+recursive-include modoboa *.html *.js *.css *.png *.po *.mo *.json
 recursive-include doc *
\ No newline at end of file