diff --git a/credentials.rb b/credentials.rb
index 4e99bda..5c5c276 100644
--- a/credentials.rb
+++ b/credentials.rb
@@ -19,7 +19,7 @@ def self.add_rubygems_credentials
 
   def self.generate_credentials_file
     FileUtils.mkdir_p(gems_path)
-    credentials = '---'
+    credentials = '---\n'
     File.open(credentials_file_path, 'w') { |f| f.write(credentials) }
   end