diff --git a/.changeset/angry-poets-accept.md b/.changeset/angry-poets-accept.md
new file mode 100644
index 00000000000..0454cf765d6
--- /dev/null
+++ b/.changeset/angry-poets-accept.md
@@ -0,0 +1,5 @@
+---
+"@remix-run/serve": patch
+---
+
+Use node `fileURLToPath` to convert source map URL to path
diff --git a/contributors.yml b/contributors.yml
index e3794c92761..14b80999999 100644
--- a/contributors.yml
+++ b/contributors.yml
@@ -623,3 +623,4 @@
 - timkraut
 - alexanderson1993
 - signed
+- VHall1
diff --git a/packages/remix-serve/cli.ts b/packages/remix-serve/cli.ts
index 079bad13d61..d741647d0e7 100644
--- a/packages/remix-serve/cli.ts
+++ b/packages/remix-serve/cli.ts
@@ -20,12 +20,13 @@ process.env.NODE_ENV = process.env.NODE_ENV ?? "production";
 
 sourceMapSupport.install({
   retrieveSourceMap: function (source) {
-    // get source file without the `file://` prefix or `?t=...` suffix
-    let match = source.match(/^file:\/\/(.*)\?t=[.\d]+$/);
+    // get source file with the `file://` prefix
+    let match = source.match(/^file:\/\/(.*)$/);
     if (match) {
+      let filePath = url.fileURLToPath(source);
       return {
         url: source,
-        map: fs.readFileSync(`${match[1]}.map`, "utf8"),
+        map: fs.readFileSync(`${filePath}.map`, "utf8"),
       };
     }
     return null;
diff --git a/templates/express/server.js b/templates/express/server.js
index b66f6daf084..0533f94dc28 100644
--- a/templates/express/server.js
+++ b/templates/express/server.js
@@ -11,12 +11,13 @@ import sourceMapSupport from "source-map-support";
 
 sourceMapSupport.install({
   retrieveSourceMap: function (source) {
-    // get source file without the `file://` prefix or `?t=...` suffix
-    const match = source.match(/^file:\/\/(.*)\?t=[.\d]+$/);
+    // get source file with the `file://` prefix
+    const match = source.match(/^file:\/\/(.*)$/);
     if (match) {
+      const filePath = url.fileURLToPath(source);
       return {
         url: source,
-        map: fs.readFileSync(`${match[1]}.map`, "utf8"),
+        map: fs.readFileSync(`${filePath}.map`, "utf8"),
       };
     }
     return null;