Foreign Earned Income Exclusion - What is Wages adjustment?

Hello there!

 

Married Filing Jointly (considering non-resident spouse as resident alien who is living abroad and doesn't have SSN and/or ITIN)

 

I have entered my spouse yearly gross income based on monthly paychecks from primary employer under Foreign Earned Wages section. My spouse's primary employer doesn't provide official W-2 forms except monthly paychecks.

 

In the next section, there is a field for "Waged Adjustment". 

What does it mean?

 

My spouse worked another part time job during the year and do not have formal paychecks.

 

Any advise please?

Thank you.