diff --git a/lib/sshkit.rb b/lib/sshkit.rb
index 6a5ab957..ce25b4c0 100644
--- a/lib/sshkit.rb
+++ b/lib/sshkit.rb
@@ -4,7 +4,9 @@ module SSHKit
 
   class << self
 
-    attr_writer :config
+    def config=(configuration)
+      @@config = configuration
+    end
 
     def configure
       @@config ||= Configuration.new