diff --git a/MANIFEST.in b/MANIFEST.in
index 5ed072934..dec736e5a 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -5,5 +5,6 @@ recursive-include doc *.rst
 recursive-include doc *.py
 recursive-include tools *.py
 include tools/README.rst
+recursive-include test *.pem
 recursive-include test *.py
 recursive-include bson *.h