incorrect date on absence letter

[madnanali]

Hi,

I just sent my ILR based on 5Year Tier 2 General route, however after posting documents I just realized a mistake made in Absence letter is, they put the wrong year in one of my absence, I have only 3 absence during 5 year period, in the last one they put 2017 in from and to both instead of 2018. However, this is correct in the application form, as I used online Set(O) and verify that its correct in form. Should I send letter again with cover letter and details why I am sending again or wait for caseworker to notice and ask me to send the updated letter? Please help