diff --git a/packages/vite-plugin/src/node/plugin-contentScripts.ts b/packages/vite-plugin/src/node/plugin-contentScripts.ts
index 8c465ff10..a955fc771 100644
--- a/packages/vite-plugin/src/node/plugin-contentScripts.ts
+++ b/packages/vite-plugin/src/node/plugin-contentScripts.ts
@@ -204,7 +204,7 @@ export const pluginContentScripts: CrxPluginFn = () => {
                   }),
                   source: worldMainIds.has(script.id)
                     ? createProMainLoader({
-                        fileName: `./${fileName.split('/').at(-1)}`,
+                        fileName: `../${fileName}`,
                       })
                     : createProLoader({ fileName }),
                 })
diff --git a/packages/vite-plugin/src/node/plugin-manifest.ts b/packages/vite-plugin/src/node/plugin-manifest.ts
index 3a0ec4bb4..0612a70ad 100644
--- a/packages/vite-plugin/src/node/plugin-manifest.ts
+++ b/packages/vite-plugin/src/node/plugin-manifest.ts
@@ -260,7 +260,7 @@ export const pluginManifest: CrxPluginFn = () => {
                 const refId = this.emitFile({
                   type: 'chunk',
                   id,
-                  name: basename(file),
+                  name: file.replace(/[\\/]/g, '-'),
                 })
                 contentScripts.set(
                   file,