not working in PGB ('phonegap build')

[schellmax]

trying to use this in PGB, but can't make it happen.
in my config.xml file i have:

    <plugin name="cordova-plugin-app-name">
        <variable name="APP_NAME" value="Mein erstes Taschengeld" />
    </plugin>

PGB does pick up the plugin, a it's listed in the 'Installed Plugins' section, but when installing the ipa file on my iPhone, the spaces in the app title are stripped ('MeinerstesTaschengeld').

seems like the 'variable' tag is ignored?