diff --git a/MANIFEST.in b/MANIFEST.in
index c9b608a43..121fa6171 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -9,6 +9,7 @@ recursive-include scrapy/templates *
 recursive-include scrapy/tests/sample_data *
 recursive-include scrapy license.txt
 recursive-include scrapy/tests *.egg
+recursive-include scrapy/tests/keys *.pem
 recursive-include docs *
 prune docs/build
 recursive-include extras *