diff --git a/lib/passenger/railz/application_spawner.rb b/lib/passenger/railz/application_spawner.rb
index 6ddf3e25ec..1d794e5601 100644
--- a/lib/passenger/railz/application_spawner.rb
+++ b/lib/passenger/railz/application_spawner.rb
@@ -148,7 +148,12 @@ def spawn_application!
 						lower_privilege('config/environment.rb', @lowest_user)
 					end
 					remove_phusion_passenger_namespace
-					require 'config/environment'
+
+					# require Rails' environment, using the same path as the original rails dispatcher,
+					# which normally does: require File.dirname(__FILE__) + "/../config/environment"
+					# thus avoiding the possibility of including the same file twice.
+					require 'public/../config/environment'
+
 					require 'dispatcher'
 				end
 				if success