PPTP VPN on same address range

Have set up a PPTP VPN on an RB750 at a remote site. It works fine when I access it from a laptop using Verizon MiFi which is using the 192.168.1.x range, but not with my desktop machine which is behind another 750 using the 192.168.0.x range, which is the same as the remote site. Both 750’s are assigned the same IP (192.168.0.1). I imagine this is causing an interesting conflict.

Anyway, is there any way to make this work short of changing one of the routers from 192.168.0.x to 192.168.1.x? I can do that, was just wondering if there was some other fix.

Thanks.