Flutter dragging out text

I am building a flutter web app, where I want to have some text in the Futura Bold Font. The Text is in a Column, In a Container and in a Fittedbox, like so:

Container(
          width: MediaQuery.of(context).size.width * 0.9,
          child: FittedBox(
            fit: BoxFit.fitWidth,
            child: Text(
              'Join to closed beta',
              textAlign: TextAlign.center,
              style: TextStyle(
                fontFamily: 'FuturaBold',
                color: Colors.white,
                // fontSize: 50
              ),
            ),
          ),
        ),

The pubspec.yaml for the font is this:

 fonts:
- family: FuturaBold
  fonts:
    - asset: lib/assets/fonts/Futura Bold font.ttf

However, the text is drawn out vertically, so instead of looking like this: it looks like this: . How could I fix this? Thanks.