diff --git a/tools/test-js-with-node b/tools/test-js-with-node
index bb770bec1c..2da28e4b7f 100755
--- a/tools/test-js-with-node
+++ b/tools/test-js-with-node
@@ -175,7 +175,7 @@ EXEMPT_FILES = make_set(
         "web/src/settings_exports.ts",
         "web/src/settings_invites.js",
         "web/src/settings_linkifiers.js",
-        "web/src/settings_muted_users.js",
+        "web/src/settings_muted_users.ts",
         "web/src/settings_notifications.js",
         "web/src/settings_org.js",
         "web/src/settings_panel_menu.js",
diff --git a/web/src/settings_muted_users.js b/web/src/settings_muted_users.ts
similarity index 83%
rename from web/src/settings_muted_users.js
rename to web/src/settings_muted_users.ts
index 7ef4227689..8fadfc0fa7 100644
--- a/web/src/settings_muted_users.js
+++ b/web/src/settings_muted_users.ts
@@ -9,16 +9,22 @@ import * as scroll_util from "./scroll_util";
 
 export let loaded = false;
 
-export function populate_list() {
+type MutedUserItem = {
+    user_id: number;
+    user_name: string;
+    date_muted_str: string;
+};
+
+export function populate_list(): void {
     const all_muted_users = muted_users.get_muted_users().map((user) => ({
         user_id: user.id,
         user_name: people.get_full_name(user.id),
         date_muted_str: user.date_muted_str,
     }));
     const $muted_users_table = $("#muted_users_table");
-    const $search_input = $("#muted_users_search");
+    const $search_input = $<HTMLInputElement>("input#muted_users_search");
 
-    ListWidget.create($muted_users_table, all_muted_users, {
+    ListWidget.create<MutedUserItem>($muted_users_table, all_muted_users, {
         name: "muted-users-list",
         get_item: ListWidget.default_get_item,
         modifier_html(muted_user) {
@@ -44,11 +50,11 @@ export function populate_list() {
     });
 }
 
-export function set_up() {
+export function set_up(): void {
     loaded = true;
     $("body").on("click", ".settings-unmute-user", function (e) {
         const $row = $(this).closest("tr");
-        const user_id = Number.parseInt($row.attr("data-user-id"), 10);
+        const user_id = Number.parseInt($row.attr("data-user-id")!, 10);
 
         e.stopPropagation();
         muted_users.unmute_user(user_id);
@@ -57,6 +63,6 @@ export function set_up() {
     populate_list();
 }
 
-export function reset() {
+export function reset(): void {
     loaded = false;
 }