diff --git a/railties/lib/rails/commands.rb b/railties/lib/rails/commands.rb
index 338565247f..46363d7921 100644
--- a/railties/lib/rails/commands.rb
+++ b/railties/lib/rails/commands.rb
@@ -18,8 +18,7 @@ when 'generate', 'destroy', 'plugin'
     require APP_PATH
     Rails.application.require_environment!
 
-    if defined?(ENGINE_PATH)
-      engine = Rails.application.railties.engines.find { |r| r.root.to_s == ENGINE_PATH }
+    if defined?(ENGINE_PATH) && engine = Rails::Engine.find(ENGINE_PATH)
       Rails.application = engine
     end