diff --git a/lib/canfig/instance.rb b/lib/canfig/instance.rb
index 1c23ab7..3d09f3c 100644
--- a/lib/canfig/instance.rb
+++ b/lib/canfig/instance.rb
@@ -5,7 +5,7 @@ def configuration
     end
 
     def configure(&block)
-      @configuration.configure &block
+      configuration.configure &block
     end
   end
 end