Garadgets (2+) and voice activation

I use Garadget with my Amazon Alexa and with Siri. The Siri integration is done through Homebridge/Homekit. Works great, it easily distinguishes between the carHOUSE (aka “Garage”) and the Gate. However, if I say to Alexa tell smartgarage to open the gate it opens both doors (carHOUSE and gate). If I ask it to open carHOUSE it says “available options are carhousegate”. And that’s not a punctuation error. It blends both names into one. Any ideas how to distinguish the two doors?