diff --git a/quartz/util/path.ts b/quartz/util/path.ts
index 86388a33e..7dde93b05 100644
--- a/quartz/util/path.ts
+++ b/quartz/util/path.ts
@@ -15,10 +15,6 @@ export function isFilePath(s: string): s is FilePath {
   return validStart && _hasFileExtension(s)
 }
 
-export function isAbsoluteFilePath(s: string): s is FilePath {
-  const parsedUrl = new URL(s)
-  return !parsedUrl.protocol
-}
 
 /** Cannot be relative and may not have leading or trailing slashes. It can have `index` as it's last segment. Use this wherever possible is it's the most 'general' interpretation of a slug. */
 export type FullSlug = SlugLike<"full">