diff --git a/src/services/authService.js b/src/services/authService.js
index 11cecac..0325a28 100644
--- a/src/services/authService.js
+++ b/src/services/authService.js
@@ -50,7 +50,7 @@ class AuthService {
       userId: user.id
     });
 
-    return { encrypted_master_key: user.encrypted_master_key, access_token, refreshToken: randomToken };
+    return { encrypted_master_key: user.encrypted_master_key, access_token, refresh_token: randomToken };
   }
 
   // REFRESH: Intercambia un Refresh Token válido por un nuevo Access Token limpio