diff --git a/Middlewares/UserIDMiddlewareAD.js b/Middlewares/UserIDMiddlewareAD.js
index 9610b37..2b1bb5d 100644
--- a/Middlewares/UserIDMiddlewareAD.js
+++ b/Middlewares/UserIDMiddlewareAD.js
@@ -21,7 +21,7 @@ async function checkUserExistsAD(req, res, next) {
     }
 
     try {
-        let users = userData;
+        let users = Array.isArray(userData) ? userData : [];
 
         let existingUser;
         if (req.user.name) {