diff --git a/packages/vite/src/module-runner/evaluatedModules.ts b/packages/vite/src/module-runner/evaluatedModules.ts
index 36e664271ea159..b19d2421417b2e 100644
--- a/packages/vite/src/module-runner/evaluatedModules.ts
+++ b/packages/vite/src/module-runner/evaluatedModules.ts
@@ -139,7 +139,7 @@ const prefixedBuiltins = new Set([
 // /root/id.js -> /id.js
 // C:/root/id.js -> /id.js
 // C:\root\id.js -> /id.js
-function normalizeModuleId(file: string): string {
+export function normalizeModuleId(file: string): string {
   if (prefixedBuiltins.has(file)) return file
 
   // unix style, but Windows path still starts with the drive letter to check the root
diff --git a/packages/vite/src/module-runner/index.ts b/packages/vite/src/module-runner/index.ts
index e1f9c5ecbac9d3..65bb11a2cb9aba 100644
--- a/packages/vite/src/module-runner/index.ts
+++ b/packages/vite/src/module-runner/index.ts
@@ -1,6 +1,10 @@
 // this file should re-export only things that don't rely on Node.js or other runner features
 
-export { EvaluatedModules, type EvaluatedModuleNode } from './evaluatedModules'
+export {
+  EvaluatedModules,
+  normalizeModuleId,
+  type EvaluatedModuleNode,
+} from './evaluatedModules'
 export { ModuleRunner } from './runner'
 export { ESModulesEvaluator } from './esmEvaluator'