E invoice generation date discrepency

I have made one E invoice , but by mistake the date put therein was shown as 13 th April , but actually it was generated on 7 th May
Now at the time of Filing GSTR 1 this bill is being shown in April list on Portal , and is not appearing in the List of May.
Shall I Include this bill in List of April .to match the Total number of bills and amount with Portal .
Whether any penalty will be levied on the plea that the Invoice made earlier and was generated Late..

please guide me , because today is the last date of GSTR 1