Professional way to say I want this job for the money?

Interviewing for a job tomorrow with the exact same title I have currently at a very similar company. Top of the posted salary range would be about a 15% raise from what I make at my current job. When

Interviewing for a job tomorrow with the exact same title I have currently at a very similar company. Top of the posted salary range would be about a 15% raise from what I make at my current job. When I inevitably get the “why do you want to leave your current job to come work here?”, is there a way to professionally say that the only real reason would be for a pay bump? Edit: lol I appreciate the responses so far. I think it’s ridiculous we live in a world where interviewers and interviewees can’t act like the number one reason people go to work is for a paycheck.