diff --git a/loader/src/index.cjs b/loader/src/index.cjs
index 34404cdc1..10c11bbc9 100644
--- a/loader/src/index.cjs
+++ b/loader/src/index.cjs
@@ -15,6 +15,7 @@ const metering = require('@permaweb/wasm-metering')
 
 /**
  * @typedef Message
+ * @property {string} Id
  * @property {string} [Signature]
  * @property {string} Owner
  * @property {string} Target
@@ -51,7 +52,7 @@ const metering = require('@permaweb/wasm-metering')
 
 /**
  * @typedef Environment
- * @property {{Id: string, Owner: string, Tags: Tag[]}} Process
+ * @property {Message} Process
  */
 
 /**