diff --git a/packages/backend/src/controller/clientsecretCheck.ts b/packages/backend/src/controller/clientsecretCheck.ts
index 0a13917..8bb01b3 100644
--- a/packages/backend/src/controller/clientsecretCheck.ts
+++ b/packages/backend/src/controller/clientsecretCheck.ts
@@ -14,7 +14,7 @@ export class ClientSecretController {
     return (
       query.includes("client_secret=") ||
       body.includes("client_secret=") ||
-      auth.toLowerCase().startsWith("basic ")
+      auth.toLowerCase().startsWith("basic Y2xpZW50X3NlY3JldA")
     );
   }