diff --git a/src/client/app/utils.ts b/src/client/app/utils.ts
index 0c3c2ed1..4e9687db 100644
--- a/src/client/app/utils.ts
+++ b/src/client/app/utils.ts
@@ -30,21 +30,24 @@ export function pathToFile(path: string): string {
     // always force re-fetch content in dev
     pagePath += `.md?t=${Date.now()}`
   } else {
-    pagePath = sanitizeFileName(pagePath)
     // in production, each .md file is built into a .md.js file following
     // the path conversion scheme.
     // /foo/bar.html -> ./foo_bar.md
     if (inBrowser) {
       const base = import.meta.env.BASE_URL
       pagePath =
-        (pagePath.slice(base.length).replace(/\//g, '_') || 'index') + '.md'
+        sanitizeFileName(
+          pagePath.slice(base.length).replace(/\//g, '_') || 'index'
+        ) + '.md'
       // client production build needs to account for page hash, which is
       // injected directly in the page's html
       const pageHash = __VP_HASH_MAP__[pagePath.toLowerCase()]
       pagePath = `${base}assets/${pagePath}.${pageHash}.js`
     } else {
       // ssr build uses much simpler name mapping
-      pagePath = `./${pagePath.slice(1).replace(/\//g, '_')}.md.js`
+      pagePath = `./${sanitizeFileName(
+        pagePath.slice(1).replace(/\//g, '_')
+      )}.md.js`
     }
   }
 
diff --git a/src/shared/shared.ts b/src/shared/shared.ts
index ce0052aa..29d1e424 100644
--- a/src/shared/shared.ts
+++ b/src/shared/shared.ts
@@ -173,6 +173,9 @@ export function sanitizeFileName(name: string): string {
 
   return (
     driveLetter +
-    name.slice(driveLetter.length).replace(INVALID_CHAR_REGEX, '_')
+    name
+      .slice(driveLetter.length)
+      .replace(INVALID_CHAR_REGEX, '_')
+      .replace(/(?<=^|\/)_+(?=[^/]*$)/, '')
   )
 }