diff --git a/src/controller/admin/club/memberController.ts b/src/controller/admin/club/memberController.ts
index 6758ee6..fb782cc 100644
--- a/src/controller/admin/club/memberController.ts
+++ b/src/controller/admin/club/memberController.ts
@@ -447,7 +447,7 @@ export async function updateMemberById(req: Request, res: Response): Promise<any
   const lastname = req.body.lastname;
   const nameaffix = req.body.nameaffix;
   const birthdate = req.body.birthdate;
-  const internalId = req.body.internalId;
+  const internalId = req.body.internalId || null;
 
   let updateMember: UpdateMemberCommand = {
     id: memberId,