diff --git a/frontend/src/scripts/controllers/account-controller.js b/frontend/src/scripts/controllers/account-controller.js
index 2519a4f7b..f9014ab9d 100644
--- a/frontend/src/scripts/controllers/account-controller.js
+++ b/frontend/src/scripts/controllers/account-controller.js
@@ -251,7 +251,7 @@ async function loadUser(user) {
   $(".pageAccount .group.createdDate").text(text);
 
   if (VerificationController.data !== null) {
-    VerificationController.verify(user);
+    VerificationController.verify(user.uid);
   }
 }
 
diff --git a/frontend/src/scripts/controllers/verification-controller.js b/frontend/src/scripts/controllers/verification-controller.ts
similarity index 66%
rename from frontend/src/scripts/controllers/verification-controller.js
rename to frontend/src/scripts/controllers/verification-controller.ts
index 353b3589a..ecbf02f78 100644
--- a/frontend/src/scripts/controllers/verification-controller.js
+++ b/frontend/src/scripts/controllers/verification-controller.ts
@@ -3,22 +3,32 @@ import * as Settings from "../pages/settings";
 import * as DB from "../db";
 import axiosInstance from "../axios-instance";
 import * as Loader from "../elements/loader";
+import { AxiosError } from "axios";
 
-export let data = null;
-export function set(val) {
+type Data = {
+  accessToken: string;
+  tokenType: string;
+  uid?: string;
+};
+
+export let data: Data | null = null;
+
+export function set(val: Data): void {
   data = val;
 }
 
-export async function verify(user) {
+export async function verify(uid: string): Promise<void> {
+  if (data === null) return;
   Notifications.add("Linking Discord account", 0, 3);
   Loader.show();
-  data.uid = user.uid;
+  data.uid = uid;
   let response;
   try {
     response = await axiosInstance.post("/user/discord/link", { data: data });
-  } catch (e) {
+  } catch (error) {
     Loader.hide();
-    let msg = e?.response?.data?.message ?? e.message;
+    const e = error as AxiosError;
+    const msg = e?.response?.data?.message ?? e.message;
     Notifications.add("Failed to link Discord: " + msg, -1);
     return;
   }
diff --git a/frontend/src/scripts/ready.ts b/frontend/src/scripts/ready.ts
index 2851e925a..4f85fa9e0 100644
--- a/frontend/src/scripts/ready.ts
+++ b/frontend/src/scripts/ready.ts
@@ -50,8 +50,8 @@ $(document).ready(() => {
       if (window.location.pathname === "/verify") {
         const fragment = new URLSearchParams(window.location.hash.slice(1));
         if (fragment.has("access_token")) {
-          const accessToken = fragment.get("access_token");
-          const tokenType = fragment.get("token_type");
+          const accessToken = fragment.get("access_token") as string;
+          const tokenType = fragment.get("token_type") as string;
           VerificationController.set({
             accessToken: accessToken,
             tokenType: tokenType,