diff --git a/backend/src/api/controllers/user.ts b/backend/src/api/controllers/user.ts
index 143a149e6..f56b16ae1 100644
--- a/backend/src/api/controllers/user.ts
+++ b/backend/src/api/controllers/user.ts
@@ -18,7 +18,7 @@ export async function createNewUser(
   const { name } = req.body;
   const { email, uid } = req.ctx.decodedToken;
 
-  if (email.endsWith("@tidal.lol")) {
+  if (email.endsWith("@tidal.lol") || email.endsWith("@selfbot.cc")) {
     throw new MonkeyError(400, "Invalid domain");
   }