diff --git a/src/entity/hrms/hrms_training.ts b/src/entity/hrms/hrms_training.ts
index 4cc2653..21b2c10 100644
--- a/src/entity/hrms/hrms_training.ts
+++ b/src/entity/hrms/hrms_training.ts
@@ -15,6 +15,7 @@ export class HrmsTraining {
 
 	@Column({
 		nullable: false,
+		unique: true,
 		length: 256,
 	})
 	code: string;