Index: VirtualBox-6.1.40/src/VBox/Devices/PC/vbox.dsl
===================================================================
--- VirtualBox-6.1.40.orig/src/VBox/Devices/PC/vbox.dsl
+++ VirtualBox-6.1.40/src/VBox/Devices/PC/vbox.dsl
@@ -1197,7 +1197,7 @@ DefinitionBlock ("DSDT.aml", "DSDT", 2,
                 Device (SMC)
                 {
                     Name (_HID, EisaId ("APP0001"))
-                    Name (_CID, "smc-napa")
+                    Name (_CID, "smcnapa")
 
                     Method (_STA, 0, NotSerialized)
                     {