diff --git a/apps/dm_new/app/(landing)/reuse/_components/TopNav.tsx b/apps/dm_new/app/(landing)/reuse/_components/TopNav.tsx
index 47a011c57..3d9d38ccc 100644
--- a/apps/dm_new/app/(landing)/reuse/_components/TopNav.tsx
+++ b/apps/dm_new/app/(landing)/reuse/_components/TopNav.tsx
@@ -173,7 +173,7 @@ function DemandLoginModal({ open, onClose, onSuccess }: LoginModalProps) {
               type="button"
               onClick={onClose}
               aria-label="닫기"
-              className="absolute right-8 top-8 h-10 w-10 grid place-items-center rounded-full hover:bg-gray-100"
+              className="absolute right-8 top-8 z-40 h-10 w-10 grid place-items-center rounded-full hover:bg-gray-100"
             >
               <span className="text-2xl leading-none">×</span>
             </button>