diff --git a/src/mess/machine/lux4105.c b/src/mess/machine/lux4105.c
index d5f57a19af0..8fa06584de2 100644
--- a/src/mess/machine/lux4105.c
+++ b/src/mess/machine/lux4105.c
@@ -69,7 +69,7 @@ static MACHINE_CONFIG_FRAGMENT( luxor_4105 )
 	MCFG_SCSICB_ADD(SASIBUS_TAG ":host")
 	MCFG_SCSICB_BSY_HANDLER(DEVWRITELINE(DEVICE_SELF_OWNER, luxor_4105_device, sasi_bsy_w))
 	MCFG_SCSICB_IO_HANDLER(DEVWRITELINE(DEVICE_SELF_OWNER, luxor_4105_device, sasi_io_w))
-	MCFG_SCSICB_REQ_HANDLER(WRITELINE(luxor_4105_device, sasi_req_w))
+	MCFG_SCSICB_REQ_HANDLER(DEVWRITELINE(DEVICE_SELF_OWNER, luxor_4105_device, sasi_req_w))
 MACHINE_CONFIG_END