Wrong plan Number on 5500 for 8 years

A plan has filed their 5500 for the last 8 years using 001, but their plan document has always listed 101 as the plan number.

Would the world stop revolving and life cease to exist if we simply retroactively changed the plan number to reflect what was submitted on the 5500?

I should also add that this is a large plan filer.

Thanks!

Assuming this is the first plan that the sponsor has had, then the 5500 is correct and the plan isn't. I would make the change to 001 in writing with a brief explanation of the typographical error and move on.

Interesting that the CPA firm never mentioned it before. Or the firm that did the last restatement.

WCP