Surname missing issue with WES and Express Entry profile

[tp.2015]

As per my passport my give name contains my full name (A B) and Surname is blank.

As per CIC guideline, i have put my name(A B) in the surname and left the first name blank.

and as per wes guideline,i have put my given name as First name and Last name "-"

now WES report has been generated with name as ".,A B" with ., appended before my name. Will this be a problem with CIC ?