diff --git a/crates/next-core/src/env.rs b/crates/next-core/src/env.rs
index d3bb86aaf6dcdf..392d1675ee7ad8 100644
--- a/crates/next-core/src/env.rs
+++ b/crates/next-core/src/env.rs
@@ -55,18 +55,20 @@ pub async fn env_for_js(
     } else {
         env
     };
-    let env = EmbeddableProcessEnvVc::new(env).into();
-    let image_config = next_config.image_config().await?;
 
-    let next_config = next_config.await?;
+    let env =
+        EmbeddableProcessEnvVc::new(CustomProcessEnvVc::new(env, next_config.env()).into()).into();
 
+    let image_config = next_config.image_config().await?;
     let mut map = indexmap! {
         // We need to overload the __NEXT_IMAGE_OPTS to override the default remotePatterns field.
         // This allows us to support loading from remote hostnames until we properly support reading
         // the next.config.js file.
-        "__NEXT_IMAGE_OPTS".to_string() => serde_json::to_string(&image_config).unwrap(),
+        "__NEXT_IMAGE_OPTS".to_string() => serde_json::to_string(&image_config)?,
     };
 
+    let next_config = next_config.await?;
+
     if next_config.react_strict_mode.unwrap_or(false) {
         map.insert("__NEXT_STRICT_MODE".to_string(), "true".to_string());
     }
diff --git a/crates/next-core/src/next_config.rs b/crates/next-core/src/next_config.rs
index a77fb20edb81ea..2c9bd948f5a154 100644
--- a/crates/next-core/src/next_config.rs
+++ b/crates/next-core/src/next_config.rs
@@ -1,5 +1,3 @@
-use std::collections::HashMap;
-
 use anyhow::Result;
 use indexmap::IndexMap;
 use serde::{Deserialize, Serialize};
@@ -8,6 +6,7 @@ use turbo_tasks::{
     trace::TraceRawVcs,
     Value,
 };
+use turbo_tasks_env::EnvMapVc;
 use turbopack::{
     evaluate_context::node_evaluate_asset_context,
     module_options::{
@@ -44,7 +43,7 @@ pub struct NextConfig {
     pub typescript: Option<TypeScriptConfig>,
     pub react_strict_mode: Option<bool>,
     pub experimental: Option<ExperimentalConfig>,
-    pub env: Option<HashMap<String, String>>,
+    pub env: IndexMap<String, String>,
     pub compiler: Option<CompilerConfig>,
     pub images: ImageConfig,
     pub transpile_packages: Option<Vec<String>>,
@@ -206,6 +205,11 @@ impl NextConfigVc {
         ))
     }
 
+    #[turbo_tasks::function]
+    pub async fn env(self) -> Result<EnvMapVc> {
+        Ok(EnvMapVc::cell(self.await?.env.clone()))
+    }
+
     #[turbo_tasks::function]
     pub async fn image_config(self) -> Result<ImageConfigVc> {
         Ok(self.await?.images.clone().cell())