diff --git a/MANIFEST.in b/MANIFEST.in
index 9fd29fa..7db81e8 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -1,7 +1,8 @@
 include Makefile
+include conftest.py
 include requirements*.txt
 include version.txt
 recursive-include swh/core/sql *.sql
 recursive-include swh py.typed
 recursive-include swh/core/tests/data/ *
 recursive-include swh/core/tests/fixture/data/ *