diff --git a/doc/modules.md b/doc/modules.md
index 781900a167..ff655c5119 100644
--- a/doc/modules.md
+++ b/doc/modules.md
@@ -66,7 +66,7 @@ export function bar() {
 **Out**
 
 ```javascript
-define("filename", ["exports", "foo"], function (exports, _foo) {
+define(["exports", "foo"], function (exports, _foo) {
   exports.bar = bar;
 
   var foo = _foo.default;
@@ -77,6 +77,12 @@ define("filename", ["exports", "foo"], function (exports, _foo) {
 });
 ```
 
+You can optionally specify to include the module id (using the `--amd-module-id` argument):
+
+```javascript
+define("filename", ["exports", "foo"], function (exports, _foo) {})
+```
+
 ### UMD
 
 **In**
@@ -94,7 +100,7 @@ export function bar() {
 ```javascript
 (function (factory) {
   if (typeof define === "function" && define.amd) {
-    define("filename", ["exports", "foo"], factory);
+    define(["exports", "foo"], factory);
   } else if (typeof exports !== "undefined") {
     factory(exports, require("foo"));
   }
diff --git a/doc/usage.md b/doc/usage.md
index 02c845469b..3fd2d4f10e 100644
--- a/doc/usage.md
+++ b/doc/usage.md
@@ -123,6 +123,11 @@ to5.transformFile("filename.js", options, function (err, result) {
   // Default: `sourceRoot` option.
   moduleRoot: "my-app",
 
+  // If truthy, insert an explicit id for each defined AMD module.
+  // By default, AMD modules are anonymous.
+  // Default: false
+  amdModuleId: true,
+
   // Optionally replace all 6to5 helper declarations with a referenece to this
   // variable. If set to `true` then the default namespace is used "to5Runtime".
   // Default: false