diff --git a/MANIFEST.in b/MANIFEST.in
index 2c2ae528..98c05e46 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -7,6 +7,6 @@ recursive-include conf config.py cacert.pem *.conf *.cfg *.service
 recursive-include docs *.txt *.rst *.md
 recursive-include module_build_service *
 recursive-include fedmsg.d *
-recursive-include tests *.yaml
+recursive-include tests *.yaml *.json
 recursive-include tests/vcr-request-data *
 recursive-include tests/scm_data *