diff --git a/.changeset/witty-dots-film.md b/.changeset/witty-dots-film.md
new file mode 100644
index 000000000..ec3abb32a
--- /dev/null
+++ b/.changeset/witty-dots-film.md
@@ -0,0 +1,5 @@
+---
+"open-next": patch
+---
+
+[windows] Specify the `file://` protocol when importing config on Windows
diff --git a/packages/open-next/src/build.ts b/packages/open-next/src/build.ts
index 42f9497fd..201a6c160 100755
--- a/packages/open-next/src/build.ts
+++ b/packages/open-next/src/build.ts
@@ -50,11 +50,13 @@ export async function build(
 
   // Load open-next.config.ts
   const tempDir = initTempDir();
-  const configPath = compileOpenNextConfigNode(
+  let configPath = compileOpenNextConfigNode(
     tempDir,
     openNextConfigPath,
     nodeExternals,
   );
+  // On Windows, we need to use file:// protocol to load the config file using import()
+  if (process.platform === "win32") configPath = `file://${configPath}`;
   config = (await import(configPath)).default as OpenNextConfig;
   validateConfig(config);