diff --git a/cli/plasmo/src/features/env/env-config.ts b/cli/plasmo/src/features/env/env-config.ts
index 7b1296c95..760e1200e 100644
--- a/cli/plasmo/src/features/env/env-config.ts
+++ b/cli/plasmo/src/features/env/env-config.ts
@@ -89,6 +89,12 @@ function maybeParseJSON(value: string): any {
   return match ? JSON.parse(match[1]) : value
 }
 
+export const setInternalEnv = (env: Record<string, string>) => {
+  for (const [key, value] of Object.entries(env)) {
+    process.env[`${INTERNAL_ENV_PREFIX}${constantCase(key)}`] = value
+  }
+}
+
 export const getEnvFileNames = () => {
   const nodeEnv = process.env.NODE_ENV
   const flagMap = getFlagMap()
diff --git a/cli/plasmo/src/features/helpers/create-parcel-bundler.ts b/cli/plasmo/src/features/helpers/create-parcel-bundler.ts
index f7c03ee7b..786d84b55 100644
--- a/cli/plasmo/src/features/helpers/create-parcel-bundler.ts
+++ b/cli/plasmo/src/features/helpers/create-parcel-bundler.ts
@@ -11,6 +11,7 @@ import { Parcel, type ParcelOptions } from "@plasmohq/parcel-core"
 import type { PlasmoManifest } from "~features/manifest-factory/base"
 
 import { getPackageManager } from "./package-manager"
+import { setInternalEnv } from "~features/env/env-config"
 
 const PackageInstallerMap = {
   npm: ParcelPM.Npm,
@@ -104,6 +105,8 @@ export const createParcelBuilder = async (
         : ["last 1 Chrome version"]
   }
 
+  setInternalEnv(bundleConfig)
+
   const bundler = new Parcel({
     inputFS,
     packageManager,