diff --git a/config/environments/preproduction.rb b/config/environments/preproduction.rb
index 243d7ffef..5dfdcacd6 100644
--- a/config/environments/preproduction.rb
+++ b/config/environments/preproduction.rb
@@ -10,6 +10,11 @@ Rails.application.configure do
   # Rake tasks automatically ignore this option for performance.
   config.eager_load = true
 
+  # Because autoloading is disabled in production environments with Rails 5,
+  # using autoload_paths will not load needed classes from specified paths.
+  # The solution to this, is to ask Rails to eager load classes.
+  config.eager_load_paths << "#{config.root}/lib"
+
   # Full error reports are disabled and caching is turned on.
   config.consider_all_requests_local       = false
   config.action_controller.perform_caching = true
diff --git a/config/environments/production.rb b/config/environments/production.rb
index 680a3b29a..d66dd3b3d 100644
--- a/config/environments/production.rb
+++ b/config/environments/production.rb
@@ -10,6 +10,11 @@ Rails.application.configure do
   # Rake tasks automatically ignore this option for performance.
   config.eager_load = true
 
+  # Because autoloading is disabled in production environments with Rails 5,
+  # using autoload_paths will not load needed classes from specified paths.
+  # The solution to this, is to ask Rails to eager load classes.
+  config.eager_load_paths << "#{config.root}/lib"
+
   # Full error reports are disabled and caching is turned on.
   config.consider_all_requests_local       = false
   config.action_controller.perform_caching = true
diff --git a/config/environments/staging.rb b/config/environments/staging.rb
index 7bd4f8aa9..5a47275cc 100644
--- a/config/environments/staging.rb
+++ b/config/environments/staging.rb
@@ -10,6 +10,11 @@ Rails.application.configure do
   # Rake tasks automatically ignore this option for performance.
   config.eager_load = true
 
+  # Because autoloading is disabled in production environments with Rails 5,
+  # using autoload_paths will not load needed classes from specified paths.
+  # The solution to this, is to ask Rails to eager load classes.
+  config.eager_load_paths << "#{config.root}/lib"
+
   # Full error reports are disabled and caching is turned on.
   config.consider_all_requests_local       = false
   config.action_controller.perform_caching = true