diff --git a/env.go b/env.go
index 735fe1a..91c247a 100644
--- a/env.go
+++ b/env.go
@@ -1,6 +1,8 @@
 package workers
 
-// Getenv is an alias for js.Global().Get(env_name).
+// Getenv gets an environment variable set to global object.
+// * https://developers.cloudflare.com/workers/platform/environment-variables/
+// * Technically, this function is just an alias for js.Global().Get(env_name).
 func Getenv(name string) string {
 	return global.Get(name).String()
 }