diff --git a/sequelize/sequelize-2.0.0.d.ts b/sequelize/sequelize-2.0.0.d.ts
index 04af612a5..5565f0e21 100644
--- a/sequelize/sequelize-2.0.0.d.ts
+++ b/sequelize/sequelize-2.0.0.d.ts
@@ -1379,6 +1379,11 @@ declare module "sequelize"
              * connecting to a pg database, you should specify 'pg.js' here
              */
             dialectModulePath?: string;
+			
+            /**
+             * The dialect options that are passed to the underlying dialect library.
+             */
+            dialectOptions?: Object;
 
             /**
              * The host of the relational database. Default 'localhost'.