diff --git a/generate/msvc/AcpiSubsystem.dsp b/generate/msvc/AcpiSubsystem.dsp
index ff5a9300d..64461e915 100644
--- a/generate/msvc/AcpiSubsystem.dsp
+++ b/generate/msvc/AcpiSubsystem.dsp
@@ -71,7 +71,7 @@ PostBuild_Cmds=copy bin\acpica.lib ..\..\libraries\acpica.lib	dir ..\..\librarie
 # PROP Intermediate_Dir "\Acpi\Components\Generate\VC\AcpiSubsystem"
 # PROP Target_Dir ""
 # ADD BASE CPP /nologo /W3 /GX /ZI /Od /D "WIN32" /D "_DEBUG" /D "_MBCS" /D "_LIB" /YX /FD /GZ /c
-# ADD CPP /nologo /Gz /MT /Za /W4 /GX /Z7 /Od /I "..\..\Subsystem\Include" /I "\98ddk\inc\win98" /D "ACPI_DEBUG" /D "ENABLE_DEBUGGER" /D "_DEBUG" /D "_WINDOWS" /D PROCESSOR_ARCHITECTURE=x86 /D "WIN32" /FR /FD /c
+# ADD CPP /nologo /Gz /MT /Za /W4 /GX /Z7 /Od /I "..\..\Subsystem\Include" /I "\98ddk\inc\win98" /D "ACPI_DEBUG" /D "_DEBUG" /D "_WINDOWS" /D PROCESSOR_ARCHITECTURE=x86 /D "WIN32" /FR /FD /c
 # ADD BASE RSC /l 0x409 /d "_DEBUG"
 # ADD RSC /l 0x409
 BSC32=bscmake.exe