diff --git a/sys/windows/vs/NetHackW/NetHackW.vcxproj b/sys/windows/vs/NetHackW/NetHackW.vcxproj
index 07de0b5cb..9fa1a2009 100644
--- a/sys/windows/vs/NetHackW/NetHackW.vcxproj
+++ b/sys/windows/vs/NetHackW/NetHackW.vcxproj
@@ -36,6 +36,8 @@
       <Culture>0x0409</Culture>
       <AdditionalIncludeDirectories Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">$(SndWavDir);%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <AdditionalIncludeDirectories Condition="'$(Configuration)|$(Platform)'=='Release|x64'">$(SndWavDir);%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">$(SndWavDir);%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">$(SndWavDir);%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
     </ResourceCompile>
     <Link>
       <SubSystem>Windows</SubSystem>