diff --git a/src/entity/user_activity.ts b/src/entity/user_activity.ts
index 5ca0a97..d343072 100644
--- a/src/entity/user_activity.ts
+++ b/src/entity/user_activity.ts
@@ -2,6 +2,7 @@ import { Entity, PrimaryGeneratedColumn, Column, CreateDateColumn, UpdateDateCol
 
 import { ActivityType } from '../types/action';
 import { Application } from './application';
+import { User } from './users';
 
 @Entity('user_activities')
 export class UserActivity {
@@ -12,7 +13,11 @@ export class UserActivity {
     @JoinColumn({ name: 'application' })
     application: Application
 
-    @Index()
+    @ManyToOne(() => User, (user) => user.id, { nullable: true })
+    @JoinColumn({ name: 'id_user' })
+    // @JoinColumn()
+    user: User;
+
     @Column({
         type: 'uuid'
     })