diff --git a/lib/solid_cache/engine.rb b/lib/solid_cache/engine.rb
index c3ac141..ad66741 100644
--- a/lib/solid_cache/engine.rb
+++ b/lib/solid_cache/engine.rb
@@ -1,6 +1,7 @@
 # frozen_string_literal: true
 
 require "active_support"
+require "active_record"
 
 module SolidCache
   class Engine < ::Rails::Engine