diff --git a/codes/quantum/qubits/dynamic/floquet/floquet_xyz_ruby.yml b/codes/quantum/qubits/dynamic/floquet/floquet_xyz_ruby.yml
index 9ee172a4d..1ae8ecb74 100644
--- a/codes/quantum/qubits/dynamic/floquet/floquet_xyz_ruby.yml
+++ b/codes/quantum/qubits/dynamic/floquet/floquet_xyz_ruby.yml
@@ -44,5 +44,7 @@ relations:
 _meta:
   # Change log - most recent first
   changelog:
+    - user_id: JulioCarlosMagdalenaDeLaFuente
+      date: '2024-07-12'
     - user_id: VictorVAlbert
       date: '2024-07-12'
diff --git a/users/users_db.yml b/users/users_db.yml
index cd0e06e07..b532b69e8 100644
--- a/users/users_db.yml
+++ b/users/users_db.yml
@@ -34,6 +34,11 @@
 
 
 #
+
+- user_id: JulioCarlosMagdalenaDeLaFuente
+  name: 'Julio Carlos Magdalena De La Fuente'
+  gscholaruser: 4NhHYSkAAAAJ
+
 - user_id: MarkusGrassl
   name: 'Markus Grassl'
   gscholaruser: 3ufeWtMAAAAJ