diff --git a/MANIFEST.in b/MANIFEST.in
index ef5d11a8..a46e7276 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -1,4 +1,4 @@
 include README.rst
 include LICENSE
 include requirements.txt
-recursive-include ckanext/hierarchy *.html *.json *.js *.less *.css *.mo
+recursive-include ckanext/hierarchy *.html *.json *.js *.less *.css *.mo *.yml