diff --git a/test/configuration_test.rb b/test/configuration_test.rb
index 7b22ee2a..75b9de14 100644
--- a/test/configuration_test.rb
+++ b/test/configuration_test.rb
@@ -10,7 +10,7 @@ class ConfigurationTest < ActiveSupport::TestCase
       registry: { "username" => "dhh", "password" => "secret" },
       env: { "REDIS_URL" => "redis://x/y" },
       servers: [ "1.1.1.1", "1.1.1.2" ],
-      volumes: ["/local/path:/container/path"],
+      volumes: ["/local/path:/container/path"]
     }
 
     @config = Mrsk::Configuration.new(@deploy)