diff --git a/src/frontend/src/features/rooms/utils/telephony.ts b/src/frontend/src/features/rooms/utils/telephony.ts
index 0a857330..4a5ee4bb 100644
--- a/src/frontend/src/features/rooms/utils/telephony.ts
+++ b/src/frontend/src/features/rooms/utils/telephony.ts
@@ -19,5 +19,5 @@ export const parseConfigPhoneNumber = (
 }
 
 export function formatPinCode(pinCode?: string) {
-  return pinCode && `${pinCode.replace(/(\d{3})(\d{3})(\d{4})/, '$1 $2 $3')} #`
+  return pinCode && `${pinCode.replace(/(\d{3})(\d{3})(\d{4})/, '$1 $2 $3')}#`
 }