diff --git a/woocommerce-wirecard-checkout-seamless/readme.txt b/woocommerce-wirecard-checkout-seamless/readme.txt
index 1df1d33..5e6f0bc 100644
--- a/woocommerce-wirecard-checkout-seamless/readme.txt
+++ b/woocommerce-wirecard-checkout-seamless/readme.txt
@@ -36,5 +36,6 @@ Wirecard Checkout Seamless offers:
 * WordPress 4.4+
 * WooCommerce 3.0+
 
-1. Upload the plugin files to the `/wp-content/plugins/plugin-name` directory, or install the plugin through the WordPress plugins screen directly.
-2. Activate the plugin through the 'Plugins' screen in WordPress
+1. Upload the plugin files to the `/wp-content/plugins/` directory, or install the plugin through the WordPress plugins screen directly.
+2. Execute `composer install` in the plugin directory. This should create a directory named vendor.
+3. Activate the plugin through the 'Plugins' screen in WordPress.