diff --git a/src/controllers/notifications_controller.rs b/src/controllers/notifications_controller.rs
index ca18ef4..8702725 100644
--- a/src/controllers/notifications_controller.rs
+++ b/src/controllers/notifications_controller.rs
@@ -8,7 +8,7 @@ use crate::api_data::res_number_unread_notifications::ResNumberUnreadNotificatio
 use crate::controllers::routes::RequestResult;
 use crate::data::error::ResultBoxError;
 use crate::data::http_request_handler::HttpRequestHandler;
-use crate::data::notification::{Notification, PartialNotification};
+use crate::data::notification::Notification;
 use crate::helpers::{conversations_helper, friends_helper, notifications_helper};
 
 impl HttpRequestHandler {
@@ -59,17 +59,15 @@ pub fn mark_seen(r: &mut HttpRequestHandler) -> RequestResult {
     let notif = r.post_notif_id("notifID")?;
     let delete_similar = r.post_bool_opt("delete_similar", false);
 
+    let mut notif = notif.into_partial();
+
     // Check if we are targeting a precise notification or an undetermined number of similar
     // notifications
-    if !delete_similar {
-        notifications_helper::delete(
-            &PartialNotification::new()
-                .set_id(notif.id)
-        )?;
-    } else {
-        // TODO : implement me
-        unimplemented!();
+    if delete_similar {
+        notif.id = None;
     }
 
+    notifications_helper::delete(&notif)?;
+
     r.success("Notification deleted")
 }
\ No newline at end of file
diff --git a/src/data/notification.rs b/src/data/notification.rs
index 0e334cd..8463f7a 100644
--- a/src/data/notification.rs
+++ b/src/data/notification.rs
@@ -153,6 +153,24 @@ pub struct Notification {
     pub container_type: Option<NotifElemType>,
 }
 
+impl Notification {
+    pub fn into_partial(self) -> PartialNotification {
+        PartialNotification {
+            id: Some(self.id),
+            time_create: Some(self.time_create),
+            seen: Some(self.seen),
+            from_user_id: Some(self.from_user_id),
+            dest_user_id: Some(self.dest_user_id),
+            on_elem_id: Some(self.on_elem_id),
+            on_elem_type: Some(self.on_elem_type),
+            kind: Some(self.kind),
+            visibility: Some(self.visibility),
+            container_id: self.container_id,
+            container_type: self.container_type,
+        }
+    }
+}
+
 pub struct PartialNotification {
     pub id: Option<u64>,
     pub time_create: Option<u64>,