diff --git a/src/components/nav-menu.css b/src/components/nav-menu.css
index 699c15de..7c79f674 100644
--- a/src/components/nav-menu.css
+++ b/src/components/nav-menu.css
@@ -33,6 +33,8 @@
     position: sticky;
     top: 0;
     animation: phanpying 0.2s ease-in-out both;
+    border-top-right-radius: inherit;
+    border-bottom-right-radius: inherit;
   }
   .nav-menu section:last-child > .szh-menu__divider:first-child {
     display: none;