diff --git a/generate/msvc/AcpiExec.dsp b/generate/msvc/AcpiExec.dsp
index cf06eb230..00727167d 100644
--- a/generate/msvc/AcpiExec.dsp
+++ b/generate/msvc/AcpiExec.dsp
@@ -312,7 +312,7 @@ SOURCE=..\..\Subsystem\Parser\psutils.c
 # End Source File
 # Begin Source File
 
-SOURCE=..\..\Subsystem\Parser\pswalk.c
+SOURCE=..\..\subsystem\Parser\pswalk.c
 # End Source File
 # Begin Source File