diff --git a/app/models/attachment.rb b/app/models/attachment.rb
index 99e461d..93a1534 100644
--- a/app/models/attachment.rb
+++ b/app/models/attachment.rb
@@ -43,7 +43,7 @@ class Attachment < ActiveRecord::Base
                                                         "LEFT JOIN #{Project.table_name} ON #{Document.table_name}.project_id = #{Project.table_name}.id"}
 
   cattr_accessor :storage_path
-  @@storage_path = "#{RAILS_ROOT}/files"
+  @@storage_path = Redmine::Configuration['attachments_storage_path'] || "#{RAILS_ROOT}/files"
   
   def validate
     if self.filesize > Setting.attachment_max_size.to_i.kilobytes
diff --git a/config/configuration.yml.example b/config/configuration.yml.example
index 4baaeff..673c25a 100644
--- a/config/configuration.yml.example
+++ b/config/configuration.yml.example
@@ -79,6 +79,7 @@
 
 # default configuration options for all environments
 default:
+  # Outgoing emails configuration (see examples above)
   email_delivery:
     delivery_method: :smtp
     smtp_settings:
@@ -89,6 +90,15 @@ default:
       user_name: "redmine@example.net"
       password: "redmine"
   
+  # Absolute path to the directory where attachments are stored.
+  # The default is the 'files' directory in your Redmine instance.
+  # Your Redmine instance needs to have write permission on this
+  # directory.
+  # Examples:
+  # attachments_storage_path: /var/redmine/files
+  # attachments_storage_path: D:/redmine/files
+  attachments_storage_path:
+  
 # specific configuration options for production environment
 # that overrides the default ones
 production: