wrong Occupational code in certified labor certificate

[blackbird2000]

Having waited for almost 4 years, my labor certificate is certified. But it has
the wrong occupational code. On my ETA750 form, the title is
programmer/analyst. The occupational code on my certified labor is 25-1021
computer science teachers, postsecondary.

I work at an University. The International office deal with my immigration
application. And they told me there is no problem with the wrong occupational
code.

is that true? Will it affect my I-140 application?

Thanks!