Received W2-c after filing but original tax return was already filed correctly.

My employer sent Form W-2c after I have filed my return.  The correction was for Line 13 because the previous W-2 my employer sent did not have the checkbox 'Retirement Plan' checked.  For some reason, I actually had that checkbox checked when I filed my return.  Thus, from the common sense perspective, there is really no need to amend my return.  Should I still file for an amended income tax return?