diff --git a/.travis.yml b/.travis.yml
index d4ed1d5..b39ec08 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -4,34 +4,40 @@ sudo: false
 
 language: php
 
+dist: precise
+
 php:
   - 5.3
   - 5.4
   - 5.5
   - 5.6
   - 7.0
+  - 7.1
 
 env:
-  - DB=MYSQL CORE_RELEASE=3.2
+  - DB=MYSQL CORE_RELEASE=3.6
 
 matrix:
   include:
     - php: 5.6
-      env: DB=MYSQL CORE_RELEASE=3
+      env: DB=MYSQL CORE_RELEASE=3.5
     - php: 5.6
-      env: DB=MYSQL CORE_RELEASE=3.1
-    - php: 5.6
-      env: DB=PGSQL CORE_RELEASE=3.2
+      env: DB=PGSQL CORE_RELEASE=3.6
+    - php: 7.2
+      env: CORE_RELEASE=3
+    - php: nightly
+      env: CORE_RELEASE=3
   allow_failures:
-    - php: 7.0
+    - php: 7.2
+      env: CORE_RELEASE=3
+    - php: nightly
+      env: CORE_RELEASE=3
 
 before_script:
   - composer self-update || true
   - git clone git://github.com/silverstripe-labs/silverstripe-travis-support.git ~/travis-support
   - php ~/travis-support/travis_setup.php --source `pwd` --target ~/builds/ss
   - cd ~/builds/ss
-  - composer install
-  - composer require wilr/silverstripe-googlesitemaps
 
 script:
   - vendor/bin/phpunit googlesitemaps/tests
diff --git a/README.md b/README.md
index ee0f6f9..3e09edd 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # Google Sitemaps Module
 
-[![Build Status](https://secure.travis-ci.org/wilr/silverstripe-googlesitemaps.png?branch=master)](http://travis-ci.org/wilr/silverstripe-googlesitemaps)
+[![Build Status](https://secure.travis-ci.org/wilr/silverstripe-googlesitemaps.png?branch=1)](http://travis-ci.org/wilr/silverstripe-googlesitemaps)
 
 ## Maintainer Contact
 
diff --git a/code/extensions/GoogleSitemapExtension.php b/code/extensions/GoogleSitemapExtension.php
index ac5907c..0394d17 100644
--- a/code/extensions/GoogleSitemapExtension.php
+++ b/code/extensions/GoogleSitemapExtension.php
@@ -18,6 +18,15 @@ class GoogleSitemapExtension extends DataExtension
 
         if ($this->owner->hasMethod('AbsoluteLink')) {
             $hostHttp = parse_url(Director::protocolAndHost(), PHP_URL_HOST);
+
+            // Subsite support
+            if (class_exists('Subsite')) {
+                // Subsite will have a different domain from Director::protocolAndHost
+                if ($subsite = Subsite::currentSubsite()) {
+                    $hostHttp = parse_url(Director::protocol() . $subsite->getPrimaryDomain(), PHP_URL_HOST);
+                }
+            }
+
             $objHttp = parse_url($this->owner->AbsoluteLink(), PHP_URL_HOST);
 
             if ($objHttp != $hostHttp) {