Prefix disappear after clear field

[Lucas Costa Gusmão]

I'm using "react-native-masked-text": "^1.13.0" and if I clear all the input data, it remains blank. This is my config:

<TextInputMask
  type={'money'}
  options={{
    precision: 2,
    separator: ',',
    delimiter: '.',
    unit: 'R$ ',
    suffixUnit: ''
  }}
  value={value}
  onChangeText={onChange}
  customTextInput={InputStyle}
/>