diff --git a/acquia_purge.module b/acquia_purge.module
index 14b4c5a..9352053 100644
--- a/acquia_purge.module
+++ b/acquia_purge.module
@@ -470,7 +470,7 @@ function _acquia_purge_get_domains_add_sitesphp(&$domains) {
  *   Array with scheme strings like 'http' and 'https'.
  */
 function _acquia_purge_get_protocol_schemes() {
-  return array('http');
+  return array('http', 'https');
 }
 
 /**