diff --git a/frontend/src/pages/WeeklySummaryPage.jsx b/frontend/src/pages/WeeklySummaryPage.jsx
index c8a4918..c021020 100644
--- a/frontend/src/pages/WeeklySummaryPage.jsx
+++ b/frontend/src/pages/WeeklySummaryPage.jsx
@@ -527,6 +527,9 @@ const WeeklySummaryPage = ({ userId }) => {
     showAllUsers,
     isMobile,
     users.length,
+    currentWeek,
+    selectedDayIndex,
+    attendances,
   ]);
 
   /*
@@ -1134,13 +1137,16 @@ const WeeklySummaryPage = ({ userId }) => {
    * ------------------------------------------------------------
    */
 
-  const legendUsers =
-    (showAllUsers
-      ? users
-      : selectedUser
-        ? [selectedUser]
-        : []
-    ).map((user) => ({
+  const periodActiveUsers = isMobile
+    ? mobileActiveUsers
+    : desktopActiveUsers;
+
+  const legendUsers = periodActiveUsers
+    .filter((user) =>
+      showAllUsers ||
+      getUserId(user) === String(selectedUserId),
+    )
+    .map((user) => ({
       id: getUserId(user),
       label: getUserLabel(user),
       color: user.color,