Yes, your approach is correct. According to the IRS, you do not have to amend a tax return when the result would be inconsequential.
Here is the IRS language on their website:
If you discover an error after filing your return, you may need to amend your return. The IRS may correct mathematical, clerical errors on a return and may accept returns without certain required forms or schedules. In these instances, there's no need to amend your return. However, do file an amended return if there's a change in your filing status, income, deductions, credits or tax liability.
