diff --git a/activemodel/lib/active_model.rb b/activemodel/lib/active_model.rb
index 3e49c341828bba3c121cf3d7c06bbe9b733c0cb3..feb3d9371dd5b5fa14af4e9e7cfebaca1fd3c9bd 100644
--- a/activemodel/lib/active_model.rb
+++ b/activemodel/lib/active_model.rb
@@ -48,6 +48,7 @@ module ActiveModel
 
   eager_autoload do
     autoload :Errors
+    autoload :StrictValidationFailed, 'active_model/errors'
   end
 
   module Serializers