diff --git a/commerce_payment_visanet_peru.module b/commerce_payment_visanet_peru.module
index 20f2c2b..b16385a 100644
--- a/commerce_payment_visanet_peru.module
+++ b/commerce_payment_visanet_peru.module
@@ -63,6 +63,14 @@ function commerce_payment_visanet_peru_global_settings_form() {
     '#description' => t('The URL you asked VisaNet Peru to set as your receive callback.'),
   );
 
+  $form['commerce_payment_visanet_peru_global_terms_link'] = array(
+    '#type' => 'textfield',
+    '#title' => t('Terms and conditions'),
+    '#default_value' => variable_get('commerce_payment_visanet_peru_global_terms_link', ''),
+    '#description' => t('The URL of your terms and conditions.'),
+    '#required' => TRUE,
+  );
+
   return system_settings_form($form);
 }
 
@@ -212,10 +220,10 @@ function commerce_payment_visanet_peru_submit_form($payment_method, $pane_values
     'accept_terms' => '',
   );
 
-  $visanet_terms_link = variable_get('commerce_payment_visanet_peru_global_terms_link', FALSE);
+  $visanet_terms_link = variable_get('commerce_payment_visanet_peru_global_terms_link', '');
   $form['accept_terms'] = array(
     '#type' => 'checkbox',
-    '#title' => t('I accept the <a href="@url">terms and conditions</a>.', array('@url' => url($visanet_terms_link))),
+    '#title' => t('I accept the <a href="@url" target="_blank">terms and conditions</a>.', array('@url' => url($visanet_terms_link))),
     '#description' => t('Please check the box to accept terms and conditions.'),
     '#default_value' => $pane_values['accept_terms'],
   );