Voice to text not using personal dictionary?

I'm using a DROID RAZR M and love the voice to text feature. But how do I get it to use my personal dictionary?

For example, my friend's name is 'Seraphina'. 'Seraphina' is in my personal dictionary, however, whenever I use voice to text, it comes up as 'Serafina'. In addition to that, when I push and hold 'Serafina', a popup window appears with a list of possible corrections, none of which are 'Seraphina".

Is there a way to force the voice to text to use the personal dictionary? This happens with other names as well.