diff --git a/packages/server/src/environment.ts b/packages/server/src/environment.ts
index 8e6866d5e4..b6654d0a14 100644
--- a/packages/server/src/environment.ts
+++ b/packages/server/src/environment.ts
@@ -98,6 +98,7 @@ const environment = {
   JS_RUNNER_MEMORY_LIMIT:
     parseIntSafe(process.env.JS_RUNNER_MEMORY_LIMIT) || 64,
   LOG_JS_ERRORS: process.env.LOG_JS_ERRORS,
+  isBundled: process.env.BUNDLED,
 }
 
 // clean up any environment variable edge cases
diff --git a/packages/server/src/jsRunner/bundles/index.ts b/packages/server/src/jsRunner/bundles/index.ts
index 37e677ef46..e4b50c5e8d 100644
--- a/packages/server/src/jsRunner/bundles/index.ts
+++ b/packages/server/src/jsRunner/bundles/index.ts
@@ -8,20 +8,21 @@ export const enum BundleType {
 }
 
 const bundleSourceCode = {
-  [BundleType.HELPERS]: "../bundles/index-helpers.ivm.bundle.js",
-  [BundleType.BSON]: "../bundles/bson.ivm.bundle.js",
+  [BundleType.HELPERS]: "./index-helpers.ivm.bundle.js",
+  [BundleType.BSON]: "./bson.ivm.bundle.js",
 }
 
 export function loadBundle(type: BundleType) {
-  if (environment.isJest()) {
+  if (!environment.isBundled) {
     return fs.readFileSync(require.resolve(bundleSourceCode[type]), "utf-8")
   }
 
+  // If we are running from a built version, esbuild is configured to inject .ivm.bundle.js files as text
   switch (type) {
     case BundleType.HELPERS:
-      return require("../bundles/index-helpers.ivm.bundle.js")
+      return require("./index-helpers.ivm.bundle.js")
     case BundleType.BSON:
-      return require("../bundles/bson.ivm.bundle.js")
+      return require("./bson.ivm.bundle.js")
     default:
       utils.unreachable(type)
   }
diff --git a/scripts/build.js b/scripts/build.js
index ad31381684..73f07152a9 100755
--- a/scripts/build.js
+++ b/scripts/build.js
@@ -63,6 +63,9 @@ function runBuild(entry, outfile) {
       "graphql/*",
       "bson",
     ],
+    define: {
+      "process.env.BUNDLED": '"true"',
+    },
   }
 
   build({