diff --git a/backend/src/controller/person/mod.rs b/backend/src/controller/person/mod.rs
index 255ab14..f0f4da8 100644
--- a/backend/src/controller/person/mod.rs
+++ b/backend/src/controller/person/mod.rs
@@ -26,6 +26,7 @@ pub async fn get_by_dni(dni: i32) -> (Status, Json<Person>) {
             person_names: row.person_names,
             person_paternal_surname: row.person_paternal_surname,
             person_maternal_surname: row.person_maternal_surname,
+            person_classroom_id: None,
         };
 
         return (Status::Ok, Json(person));
diff --git a/backend/src/model/person.rs b/backend/src/model/person.rs
index 061f527..a455550 100644
--- a/backend/src/model/person.rs
+++ b/backend/src/model/person.rs
@@ -22,6 +22,8 @@ pub struct Person {
     ///
     /// Example: `Gomez`
     pub person_maternal_surname: String,
+    /// Id of the online classroom user id linked to this user
+    pub person_classroom_id: Option<i32>
 }
 
 impl Person {
@@ -32,6 +34,7 @@ impl Person {
             person_names: "".to_string(),
             person_paternal_surname: "".to_string(),
             person_maternal_surname: "".to_string(),
+            person_classroom_id: None,
         }
     }
 
@@ -63,7 +66,7 @@ impl PersonCreate {
             self.person_dni,
             self.person_names,
             self.person_paternal_surname,
-            self.person_maternal_surname
+            self.person_maternal_surname,
         )
             .execute(db)
             .await?;