diff --git a/sites/all/modules/commerce_authnet_arb/commerce_authnet_arb.module b/sites/all/modules/commerce_authnet_arb/commerce_authnet_arb.module
index e156295..2408eea 100644
--- a/sites/all/modules/commerce_authnet_arb/commerce_authnet_arb.module
+++ b/sites/all/modules/commerce_authnet_arb/commerce_authnet_arb.module
@@ -580,3 +580,18 @@ function _split_fullname($fullname) {
   return $name;
 }
 
+/**
+ * Implements hook_help().
+ */
+function commerce_authnet_arb_help($path, $arg) {
+  switch ($path) {
+    case 'admin/config/authnet-arb':
+      return '<p>Configure Authorize.Net merchant details.</p>';
+
+    case 'admin/help#commerce_authnet_arb':
+      return '<h3>Authorize ARB</h3><p>This module allows you to integrate Authorize.net
+      with the Drupal Commerce framework. This supports only the Authorize ARB
+      (Recurring billing) for credit card payments and is ideal for sites that
+      support subscriptions. The module supports ARB silent post.</p>';
+  }
+}