diff --git a/packages/docusaurus/src/client/normalizeLocation.ts b/packages/docusaurus/src/client/normalizeLocation.ts
index 41a19b5816e6..0a609524555d 100644
--- a/packages/docusaurus/src/client/normalizeLocation.ts
+++ b/packages/docusaurus/src/client/normalizeLocation.ts
@@ -5,6 +5,8 @@
  * LICENSE file in the root directory of this source tree.
  */
 
+import routes from '@generated/routes';
+import {matchRoutes} from 'react-router-config';
 import type {Location} from 'history';
 
 // Memoize previously normalized pathnames.
@@ -18,6 +20,11 @@ export default function normalizeLocation<T extends Location>(location: T): T {
     };
   }
 
+  if (matchRoutes(routes, location.pathname)) {
+    pathnames[location.pathname] = location.pathname;
+    return location;
+  }
+
   const pathname =
     location.pathname.trim().replace(/(?:\/index)?\.html$/, '') || '/';
 
diff --git a/website/_dogfooding/_docs tests/dummy.md b/website/_dogfooding/_docs tests/dummy.md
index ea913c996231..8ec7fc90fbdb 100644
--- a/website/_dogfooding/_docs tests/dummy.md	
+++ b/website/_dogfooding/_docs tests/dummy.md	
@@ -1 +1,5 @@
+---
+slug: dummy.html
+---
+
 # Just a dummy page