diff --git a/reactos/bootdata/hivesys.inf b/reactos/bootdata/hivesys.inf
index 11555173057..0872979c175 100644
--- a/reactos/bootdata/hivesys.inf
+++ b/reactos/bootdata/hivesys.inf
@@ -674,7 +674,7 @@ HKLM,"SYSTEM\CurrentControlSet\Services\Null","Type",0x00010001,0x00000001
 HKLM,"SYSTEM\CurrentControlSet\Services\Serial","ErrorControl",0x00010001,0x00000000
 HKLM,"SYSTEM\CurrentControlSet\Services\Serial","Group",0x00000000,"Base"
 HKLM,"SYSTEM\CurrentControlSet\Services\Serial","ImagePath",0x00020000,"system32\drivers\serial.sys"
-HKLM,"SYSTEM\CurrentControlSet\Services\Serial","Start",0x00010001,0x00000001
+HKLM,"SYSTEM\CurrentControlSet\Services\Serial","Start",0x00010001,0x00000004
 HKLM,"SYSTEM\CurrentControlSet\Services\Serial","Type",0x00010001,0x00000001
 ;hard coded values
 HKLM,"SYSTEM\CurrentControlSet\Services\Serial\Enum","0",0x00000000,"ACPI\PNP0501"