diff --git a/cli/js/lib.deno.shared_globals.d.ts b/cli/js/lib.deno.shared_globals.d.ts
index ed1c1ac0b5..9ad9f0a1e2 100644
--- a/cli/js/lib.deno.shared_globals.d.ts
+++ b/cli/js/lib.deno.shared_globals.d.ts
@@ -1172,7 +1172,7 @@ interface URL {
 
 declare const URL: {
   prototype: URL;
-  new (url: string | URL, base?: string | URL): URL;
+  new (url: string, base?: string | URL): URL;
   createObjectURL(object: any): string;
   revokeObjectURL(url: string): void;
 };
diff --git a/std/path/posix.ts b/std/path/posix.ts
index e88eb3f973..981d32a8cb 100644
--- a/std/path/posix.ts
+++ b/std/path/posix.ts
@@ -430,5 +430,5 @@ export function parse(path: string): ParsedPath {
  * are ignored.
  */
 export function fromFileUrl(url: string | URL): string {
-  return new URL(url).pathname;
+  return new URL(url.toString()).pathname;
 }
diff --git a/std/path/win32.ts b/std/path/win32.ts
index 0557b3768e..eafddd138a 100644
--- a/std/path/win32.ts
+++ b/std/path/win32.ts
@@ -908,7 +908,7 @@ export function parse(path: string): ParsedPath {
  * are ignored.
  */
 export function fromFileUrl(url: string | URL): string {
-  return new URL(url).pathname
+  return new URL(url.toString()).pathname
     .replace(/^\/*([A-Za-z]:)(\/|$)/, "$1/")
     .replace(/\//g, "\\");
 }