diff --git a/aegisub/build/wx/setup.h b/aegisub/build/wx/setup-build.h
similarity index 100%
rename from aegisub/build/wx/setup.h
rename to aegisub/build/wx/setup-build.h
diff --git a/aegisub/build/wx/wxWidgets.vcxproj b/aegisub/build/wx/wxWidgets.vcxproj
index c34840538..9eaff477d 100644
--- a/aegisub/build/wx/wxWidgets.vcxproj
+++ b/aegisub/build/wx/wxWidgets.vcxproj
@@ -64,8 +64,8 @@
     Outputs="@(WxLibrary)"
     >
     <Copy
-      SourceFiles="setup.h"
-      DestinationFolder="$(WxSrcDir)\include\wx\msw"
+      SourceFiles="setup-build.h"
+      DestinationFiles="$(WxSrcDir)\include\wx\msw\setup.h"
       SkipUnchangedFiles="true"
       />
     <Exec