diff --git a/assets/Gener_Z.sql b/assets/Gener_Z.sql
index 2ec6409..c3fd63f 100644
--- a/assets/Gener_Z.sql
+++ b/assets/Gener_Z.sql
@@ -35,7 +35,7 @@ CREATE TABLE Utenti(
     id_utente INT PRIMARY KEY AUTO_INCREMENT,
     nome VARCHAR(30),
     cognome VARCHAR(18),
-    email VARCHAR(255),
+    email VARCHAR(255) UNIQUE,
     password VARCHAR(255)
 );