Allow RDP from a remote IP to internal IP

Hi,

I'm using UTM 9 within VMware, i've created an internal and external interfaces, all internal workstations can hit the internet, however I'm trying to create a firewall policy that allows my ip to rdp into a management server within the internal network behind the UTM.

But I can't seem to create this rule correctly,

I've created the firewall policy to allow my static IP to use RDP but it won't remote into the management server, i'm missing something?