diff --git a/functions/index.js b/functions/index.js
index 30cf5c654..a05be6a60 100644
--- a/functions/index.js
+++ b/functions/index.js
@@ -867,6 +867,23 @@ exports.verifyUser = functions.https.onRequest(async (request, response) => {
       .then((res) => res.json())
       .then(async (res2) => {
         let did = res2.id;
+
+        if (
+          (await db.collection("users").where("discordId", "==", did).get())
+            .docs.length > 0
+        ) {
+          response
+            .status(200)
+            .send({
+              data: {
+                status: -1,
+                message:
+                  "This Discord account is already paired to a different Monkeytype account",
+              },
+            });
+          return;
+        }
+
         await db.collection("users").doc(request.uid).update({
           discordId: did,
         });
diff --git a/src/js/script.js b/src/js/script.js
index 533cb919b..01c9b5363 100644
--- a/src/js/script.js
+++ b/src/js/script.js
@@ -5655,6 +5655,7 @@ let mappedRoutes = {
   "/settings": "pageSettings",
   "/about": "pageAbout",
   "/account": "pageAccount",
+  "/verify": "pageTest",
 };
 
 function handleInitialPageClasses(el) {