diff --git a/src/entity/users.ts b/src/entity/users.ts
index 9f9eacb..e686767 100644
--- a/src/entity/users.ts
+++ b/src/entity/users.ts
@@ -30,7 +30,7 @@ export class User {
 
 	@Column({
 		nullable: true,
-		unique: false,
+		unique: true,
 		length: 64,
 	})
 	username: string;