diff --git a/.travis.yml b/.travis.yml
index fd52731c..f23994ab 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -7,6 +7,11 @@ php:
 env:
   - WP_VERSION=latest WP_MULTISITE=0
 
+matrix:
+  include:
+    - php: 5.3
+      env: WP_VERSION=latest WP_MULTISITE=1
+
 before_script:
   - bash bin/install-wp-tests.sh wordpress_test root '' localhost $WP_VERSION
   - npm install -g grunt-cli