diff --git a/.gitignore b/.gitignore
index 046bcff..26fca33 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,5 @@
 Gemfile.lock
+*.gem
 *.cfg
 scripts/tmp
 integration_test/*.txt
diff --git a/teeworlds-client.gemspec b/teeworlds-client.gemspec
index 2028f97..37d8097 100644
--- a/teeworlds-client.gemspec
+++ b/teeworlds-client.gemspec
@@ -13,7 +13,7 @@ Gem::Specification.new do |s|
   s.authors     = ['ChillerDragon']
   s.email       = 'ChillerDragon@gmail.com'
   s.files       = FileList[
-    'lib/*.rb'
+    'lib/**/*.rb'
   ]
   s.required_ruby_version = '>= 3.1.2'
   s.add_dependency 'huffman_tw', '~> 0.0.1'