diff --git a/readme.md b/readme.md
index 766437f..bdaacb9 100644
--- a/readme.md
+++ b/readme.md
@@ -33,6 +33,15 @@ Optionally, an email can also be specified:
 
 These methods are available for use after the class `WooCommerceSoftwareAddOn` is initialized.
 
+### `setEmail`
+
+This can be used to replace the email used for the API requests.
+
+| Argument      | Description                                                                              |
+|:-------------:|:---------------------------------------------------------------------------------------- |
+| email         | Email to replace the current default email set during [initialization](#initialization)  |
+
+Return: void
 
 ### `generateKey`
 
@@ -299,4 +308,4 @@ These error codes are found in the plugin source code. For more information abou
 
 ### Generate Key Request
 - 105: Non matching product_id and secret_key provided
-- 105: Invalid security key
\ No newline at end of file
+- 105: Invalid security key