Index: x11/nvidia-driver/Makefile
===================================================================
--- x11/nvidia-driver/Makefile
+++ x11/nvidia-driver/Makefile
@@ -237,6 +237,14 @@
 	${REINPLACE_CMD} -e '/^DRIVER_MODULE/s/, nvidia_devclass//' \
 		${WRKSRC}/src/${NVSRC}/nvidia_pci.c
 .endif
+.if ${OSVERSION} >= 1400070
+	${REINPLACE_CMD} -e '/pmap_unmapdev/s/(vm_offset_t)//' \
+		${WRKSRC}/src/${NVSRC}/nvidia_os.c
+	${REINPLACE_CMD} -e '/vm_offset_t virtual_address/s/vm_offset_t /char */' \
+		${WRKSRC}/src/${NVSRC}/nv-freebsd.h
+	${REINPLACE_CMD} -e '/vm_offset_t address;/s/vm_offset_t /void */' \
+		${WRKSRC}/src/${NVSRC}/nvidia_subr.c
+.endif
 # Finally, process OPTIONS
 .if ${PORT_OPTIONS:MFREEBSD_AGP}
 	${REINPLACE_CMD} -E 's/undef (NV_SUPPORT_OS_AGP)/define \1/' \