Can someone help with the following SUMIFS and OR formula.

I am using the below formula to try and say sum column G if column M equals "Programme" or "Admin" and column F is greater than or equal to E5. The problem is with the OR section. I know I can fix the problem with getting rid of the OR and one of the criteria and duplicating the formula with the other criteria but hoping to use a simpler formula.

=-SUMIFS('Source Data'!$G:$G,'Source Data'!$M:$M,OR("Programme","Admin"),'Source Data'!$F:$F,"<="&$E$5)

Cheers