diff --git a/config/app.rb b/config/app.rb
index 5b2294f..259f220 100644
--- a/config/app.rb
+++ b/config/app.rb
@@ -4,8 +4,10 @@ require "hanami"
 
 module ClashDeckGenerator2
   class App < Hanami::App
+    def provider
     config.provider_sources = [
       :db
     ]
+    end
   end
 end