diff --git a/src/env.js b/src/env.js
index b9b2d683..3eab6094 100644
--- a/src/env.js
+++ b/src/env.js
@@ -24,7 +24,8 @@ export let fetchHook = esmsInitOptions.fetch ? globalHook(esmsInitOptions.fetch)
 export const metaHook = esmsInitOptions.meta ? globalHook(shimMode && esmsInitOptions.meta) : noop;
 export const tsTransform =
   esmsInitOptions.tsTransform ||
-  (document.currentScript &&
+  (hasDocument &&
+    document.currentScript &&
     document.currentScript.src.replace(self.ESMS_DEBUG ? /\.debug\.js$/ : /\.js$/, '-typescript.js')) ||
   './es-module-shims-typescript.js';