Thanks for your help.  I did not file the original T4 with the spelling mistake, but I am trying to E-file a tax return and it is being rejected because it does not match CRA records.  CRA Result Code 184, E-file error code 43

The error message is: Your client's first and or last name does not agree with the information on the CRA's records.  Please confirm that you have the correct SIN and name for this taxpayer.  If the information you entered was correct and a name change is required, enter "2" as the surname change code.