diff --git a/packages/@vuepress/theme-default/components/Navbar.vue b/packages/@vuepress/theme-default/components/Navbar.vue
index d4f562cf90..f5e12dda3e 100644
--- a/packages/@vuepress/theme-default/components/Navbar.vue
+++ b/packages/@vuepress/theme-default/components/Navbar.vue
@@ -125,4 +125,9 @@ $navbar-horizontal-padding = 1.5rem
       display none
     .links
       padding-left 1.5rem
+    .site-name
+      width calc(100vw - 9.4rem)
+      overflow hidden
+      white-space nowrap
+      text-overflow ellipsis
 </style>