diff --git a/logstash.gemspec b/logstash.gemspec
index 8127c5c2d..3210db1c0 100644
--- a/logstash.gemspec
+++ b/logstash.gemspec
@@ -1,6 +1,6 @@
 Gem::Specification.new do |spec|
   files = []
-  dirs = %w{lib examples etc patterns}
+  dirs = %w{lib examples etc patterns test}
   dirs.each do |dir|
     files += Dir["#{dir}/**/*"]
   end