diff --git a/lib/default-theme/util.js b/lib/default-theme/util.js
index e5a859be25..5aafb431bb 100644
--- a/lib/default-theme/util.js
+++ b/lib/default-theme/util.js
@@ -46,11 +46,7 @@ export function isActive (route, path) {
   }
   const routePath = normalize(route.path)
   const pagePath = normalize(path)
-  if (endingSlashRE.test(routePath) || endingSlashRE.test(pagePath)) {
-    return routePath === pagePath
-  } else {
-    return routePath.indexOf(pagePath) === 0
-  }
+  return routePath === pagePath
 }
 
 export function resolvePage (pages, rawPath, base) {