One letter mismatch between middle name on passport and Birth Certificate

[db79]

Hello,

Need some advice. 

 

In my passport the middle name , which is my father's name is slightly different compared to that on my birth certificate. It is literally one letter that is different

 

For example, In passport "Chandrashekar" vs Birth Certificate it is "Chandrashekhar".

 

The difference is in letter 'h'.

 

documents related to my GC and Visa application match my passport.

 

My BC is in English. 

 

1. would there be any major issues during 485 filing?

2. if so, what can I do ? some other forums mention about an affidavit ?