diff --git a/src/controllers/account_controller.rs b/src/controllers/account_controller.rs
index dd9889f..59a27dd 100644
--- a/src/controllers/account_controller.rs
+++ b/src/controllers/account_controller.rs
@@ -1,8 +1,8 @@
+use crate::api_data::current_user_id::CurrentUserID;
 use crate::api_data::login_success::LoginSuccess;
 use crate::controllers::routes::RequestResult;
 use crate::data::http_request_handler::HttpRequestHandler;
 use crate::helpers::account_helper;
-use crate::api_data::current_user_id::CurrentUserID;
 
 /// Account controller
 ///
@@ -35,7 +35,7 @@ pub fn login_user(request: &mut HttpRequestHandler) -> RequestResult {
 pub fn logout_user(request: &mut HttpRequestHandler) -> RequestResult {
     account_helper::destroy_login_tokens(
         &request.user_id()?,
-        request.api_client()
+        request.api_client(),
     )?;
 
     request.success("User disconnected.")
diff --git a/src/controllers/friends_controller.rs b/src/controllers/friends_controller.rs
index 829f07d..759a915 100644
--- a/src/controllers/friends_controller.rs
+++ b/src/controllers/friends_controller.rs
@@ -5,13 +5,16 @@
 use crate::api_data::friend_api::FriendAPI;
 use crate::controllers::routes::RequestResult;
 use crate::data::http_request_handler::HttpRequestHandler;
-use crate::helpers::friends_helper;
+use crate::helpers::{account_helper, friends_helper};
 
 /// Get the list of friends of the current user
 pub fn get_list(r: &mut HttpRequestHandler) -> RequestResult {
     let list = friends_helper::get_list(&r.user_id()?)?;
 
-    // TODO : update last activity (if allowed)
+    // Update last activity (if allowed)
+    if !r.post_bool_opt("incognito", false) {
+        account_helper::update_last_activity(&r.user_id()?)?;
+    }
 
     r.set_response(FriendAPI::from_list(&list))
 }
\ No newline at end of file
diff --git a/src/helpers/account_helper.rs b/src/helpers/account_helper.rs
index 5b322fb..5482919 100644
--- a/src/helpers/account_helper.rs
+++ b/src/helpers/account_helper.rs
@@ -1,4 +1,4 @@
-use crate::constants::database_tables_names::USER_ACCESS_TOKENS_TABLE;
+use crate::constants::database_tables_names::{USER_ACCESS_TOKENS_TABLE, USERS_TABLE};
 use crate::data::api_client::APIClient;
 use crate::data::error::{ExecError, ResultBoxError};
 use crate::data::user::UserID;
@@ -6,6 +6,7 @@ use crate::data::user_token::UserAccessToken;
 use crate::helpers::{database, user_helper};
 use crate::helpers::database::{DeleteQuery, InsertQuery, QueryInfo};
 use crate::utils::crypt_utils::{crypt_pass, rand_str};
+use crate::utils::date_utils::time;
 
 /// Account helper
 ///
@@ -101,4 +102,12 @@ pub fn check_user_directory_availability(dir: &str, user_id: Option<UserID>) ->
         // No user was found, virtual directory is considered as available
         (Err(_), _) => Ok(true)
     }
+}
+
+/// Update the last activity of a user
+pub fn update_last_activity(user_id: &UserID) -> ResultBoxError {
+    database::UpdateInfo::new(USERS_TABLE)
+        .cond_user_id("ID", user_id)
+        .set_u64("last_activity", time())
+        .exec()
 }
\ No newline at end of file