diff --git a/data/driver.list.in b/data/driver.list.in
index 95a09b2324..d44c1ddf84 100644
--- a/data/driver.list.in
+++ b/data/driver.list.in
@@ -741,6 +741,7 @@
 "Liebert"	"ups"	"3"	"PowerSure PSA 500"	"USB"	"usbhid-ups"
 "Liebert"	"ups"	"3"	"PowerSure PSA500MT3-230U"	"USB"	"usbhid-ups"	# https://github.com/networkupstools/nut/issues/601
 "Liebert"	"ups"	"3"	"PowerSure PSI 1440"	"USB"	"usbhid-ups"	# http://www.emersonnetworkpower.com/en-US/Products/ACPower/Pages/LiebertPowerSurePSILineInteractiveUPS10003000VA.aspx
+"Liebert"	"ups"	"3"	"PSI5-800RT120"	"USB"	"usbhid-ups"	# https://www.vertiv.com/en-us/products-catalog/critical-power/uninterruptible-power-supplies-ups/psi5-800rt120/
 
 "LNXI"	"pdu"	"1"	"Icebox"	"10 outlets"	"powerman-pdu (experimental)"