diff --git a/sys/windows/Makefile.mingw32 b/sys/windows/Makefile.mingw32
index a85f31a00..5486400c8 100644
--- a/sys/windows/Makefile.mingw32
+++ b/sys/windows/Makefile.mingw32
@@ -44,7 +44,7 @@ GAMEDIR = ../binary
 # that are available.
 #
 
-SOUNDLIBDEFS = -DWINDSOUND -DUSER_SOUNDS
+SOUNDLIBDEFS = -DSND_LIB_WINDSOUND -DUSER_SOUNDS
 
 #
 #---------------------------------------------------------------
diff --git a/sys/windows/vs/NetHack/NetHack.vcxproj b/sys/windows/vs/NetHack/NetHack.vcxproj
index 0a0591ba5..60aa44a25 100644
--- a/sys/windows/vs/NetHack/NetHack.vcxproj
+++ b/sys/windows/vs/NetHack/NetHack.vcxproj
@@ -35,7 +35,7 @@
       <FavorSizeOrSpeed>Speed</FavorSizeOrSpeed>
       <OmitFramePointers>true</OmitFramePointers>
       <AdditionalIncludeDirectories>$(WinWin32Dir);$(IncDir);$(SysWindDir);$(SysShareDir);$(WinShareDir);$(LuaDir);%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>WIN32CON;NO_TILE_C;DLB;SAFEPROCS;_LIB;HAS_STDINT_H;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WIN32CON;NO_TILE_C;DLB;SAFEPROCS;SND_LIB_WINDSOUND;_LIB;HAS_STDINT_H;%(PreprocessorDefinitions)</PreprocessorDefinitions>
     </ClCompile>
     <Link>
       <AdditionalDependencies>kernel32.lib;user32.lib;gdi32.lib;winspool.lib;comdlg32.lib;advapi32.lib;shell32.lib;ole32.lib;oleaut32.lib;uuid.lib;odbc32.lib;odbccp32.lib;winmm.lib;Winmm.lib;bcrypt.lib;%(AdditionalDependencies)</AdditionalDependencies>
@@ -270,4 +270,4 @@
   <Target Name="AfterRebuild">
     <MSBuild Projects="afternethack.proj" Targets="Build" Properties="Configuration=$(Configuration)" />
   </Target>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/sys/windows/vs/NetHackW/NetHackW.vcxproj b/sys/windows/vs/NetHackW/NetHackW.vcxproj
index b4bcb584a..cd27ab8ca 100644
--- a/sys/windows/vs/NetHackW/NetHackW.vcxproj
+++ b/sys/windows/vs/NetHackW/NetHackW.vcxproj
@@ -27,7 +27,7 @@
       <Optimization>Disabled</Optimization>
       <OmitFramePointers>true</OmitFramePointers>
       <AdditionalIncludeDirectories>$(WinWin32Dir);$(IncDir);$(SysWindDir);$(SysShareDir);$(WinShareDir);$(LuaDir);%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>TILES;_WINDOWS;DLB;MSWIN_GRAPHICS;SAFEPROCS;NOTTYGRAPHICS;HAS_STDINT_H;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>TILES;_WINDOWS;DLB;MSWIN_GRAPHICS;SAFEPROCS;NOTTYGRAPHICS;SND_LIB_WINDSOUND;HAS_STDINT_H;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <DisableSpecificWarnings Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">4820;4706;4244;4245;4100;4310</DisableSpecificWarnings>
       <DisableSpecificWarnings Condition="'$(Configuration)|$(Platform)'=='Release|x64'">4820;4706;4244;4245;4100;4310</DisableSpecificWarnings>
     </ClCompile>
@@ -314,4 +314,4 @@
   <Target Name="AfterRebuild">
     <MSBuild Projects="$(vsDir)NetHack\afternethack.proj" Targets="Build" Properties="Configuration=$(Configuration)" />
   </Target>
-</Project>
\ No newline at end of file
+</Project>