diff --git a/config/environments/development.rb b/config/environments/development.rb
index a1d979ad71..8f71ba86d3 100644
--- a/config/environments/development.rb
+++ b/config/environments/development.rb
@@ -35,6 +35,7 @@
   # Enable/disable caching. By default caching is disabled.
   # Run rails dev:cache to toggle caching.
   if Rails.root.join('tmp', 'caching-dev.txt').exist?
+    config.cache_classes = true
     config.action_controller.perform_caching = true
     config.action_controller.enable_fragment_cache_logging = true