diff --git a/MANIFEST.in b/MANIFEST.in
index 18353aadb6..e5af33dbdc 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -1,5 +1,6 @@
 prune **
 graft src
+exclude src/conftest.py
 
 include setup.py
 include setup.cfg
diff --git a/src/conftest.py b/src/conftest.py
new file mode 120000
index 0000000000..3e21d51c82
--- /dev/null
+++ b/src/conftest.py
@@ -0,0 +1 @@
+../tests/conftest.py
\ No newline at end of file