diff --git a/lib/active_resource/railtie.rb b/lib/active_resource/railtie.rb
index 800f1208e2..9b59c61442 100644
--- a/lib/active_resource/railtie.rb
+++ b/lib/active_resource/railtie.rb
@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-require "active_resource"
+require "active_resource" unless defined?(ActiveResource)
 require "rails"
 
 module ActiveResource