diff --git a/reactos/bootdata/hivesys.inf b/reactos/bootdata/hivesys.inf
index 8c1cc25e33a..44395dfaba9 100644
--- a/reactos/bootdata/hivesys.inf
+++ b/reactos/bootdata/hivesys.inf
@@ -46,6 +46,9 @@ HKLM,"SYSTEM\CurrentControlSet\Control\Class\{4D36E975-E325-11CE-BFC1-08002BE103
 HKLM,"SYSTEM\CurrentControlSet\Control\ComputerName",,0x00000012
 HKLM,"SYSTEM\CurrentControlSet\Control\ComputerName\ComputerName","ComputerName",0x00000002,"COMPUTERNAME"
 
+; Device classes key
+HKLM,"SYSTEM\CurrentControlSet\Control\DeviceClasses",,0x00000012
+
 ; Hardware profile settings
 HKLM,"SYSTEM\CurrentControlSet\Control\IDConfigDB",,0x00000012
 HKLM,"SYSTEM\CurrentControlSet\Control\IDConfigDB","CurrentConfig",0x00010001,0x00000000