Copy/Replacing statement

We have a copy/replacing statement where our intent is to change the 01 level to an 02 level.

Here is the statement we are using, note the space before and after the 01 and 02 values.

Copy "PrmPolcy.fd" replacing leading ==MP==     By ==VPPINew==,
                                        leading ==PRM==    By ==VPPINew==,
                                        leading == 01 == By == 02 ==.
The copybook begins like this

       01  PRMPOLCY-RECORD.      
           03  MP-KEY.
              05 MPPOLYR.
                 10  MPPOLY-YY                        PIC X(02).                   
                 10  MPPOLY-MM                        PIC X(01).                   
              05 MPPREFIX                             PIC X(02).
              05 MPPOLNO                              PIC X(05).

This is what gets created. The field MPPOLY-MM  defined as PIC X(01) gets changed to a Pic X(02) which is incorrect. 
It changed all fields that were Pic X(01) To X(02). How can we prevent this from  happening.

          02 VPPINewPOLCY-RECORD.
             03  VPPINew-KEY.
                05 VPPINewPOLYR.
                   10  VPPINewPOLY-YY                        PIC X(02).
                   10  VPPINewPOLY-MM                        PIC X(02).
                05 VPPINewPREFIX                             PIC X(02).
                05 VPPINewPOLNO                              PIC X(05).