diff --git a/MANIFEST.in b/MANIFEST.in
index fe3bc0d..4f7a412 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -1,7 +1,8 @@
 include README.md
 include Makefile
 include requirements*.txt
 include version.txt
+include conftest.py
 recursive-include swh/loader/git/tests/data *
 recursive-include swh/loader/git/tests/data *.bundle *.tgz
 recursive-include swh py.typed