TestNG Master Suite wont run defined suites

Im trying to run 3 suites from one master suite file but when i run the TestNG suite nothing happens as in the suite never starts.

If i run the suites individually the suites run so as far as i can see the problem is with the master suite. Any help would be appreciated.

Master Suite

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE suite SYSTEM "http://ift.tt/19x2mI9">
<suite name="Chrome Test Suite" verbose="1">
    <suite-files>
        <suite-file path="./src/test/java/suites/CAR_MozillaTestSuite.xml"></suite-file>
    </suite-files>
</suite> 

CAR_MozillaTestSuite.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE suite SYSTEM "http://ift.tt/19x2mI9">
<suite name="Mozilla Test Suite">
    <parameter name="browser" value="Mozilla" />
    <parameter name="domain" value="Caribbean" />
    <listeners>
        <listener class-name="utils.Listener"></listener>
    </listeners>
    <test name="Mozilla Test" preserve-order="true">
        <classes>
            <class name="tests.common.LoginLogout_Test" />
        </classes>

    </test>

</suite>