Should I call my piece a piano sonata or a sonatina?

Jan 19, 2020

So, I am writing another sonata form movement as the first movement of another piece. And the piece is in the key of C minor. The thing is though, that especially in the key of C minor, I tend to err on the side of more development. So, should I call it a sonatina as I am currently and try to make it more concise? Or should I call it a piano sonata and write it to be as long as I please?