diff --git a/sql/userTableSQL b/sql/userTableSQL
index 2df4ecc..d232441 100644
--- a/sql/userTableSQL
+++ b/sql/userTableSQL
@@ -4,4 +4,5 @@ CREATE TABLE `user` (
 	`email` VARCHAR(100) NOT NULL DEFAULT '0',
 	`password` VARCHAR(100) NOT NULL DEFAULT '0',
 	PRIMARY KEY (`ID`)
+	UNIQUE INDEX `user` (`user`)
 )