config/routes.rb in switch_user-0.4.1 vs config/routes.rb in switch_user-0.5.0

@@ -1,3 +1,5 @@
-Rails.application.routes.draw do
-  match 'switch_user' => 'switch_user#set_current_user'
+if Rails.version =~ /^3/
+  Rails.application.routes.draw do
+    match 'switch_user' => 'switch_user#set_current_user'
+  end
 end
\ No newline at end of file