diff --git a/plugins/winamp/winamp.vcxproj b/plugins/winamp/winamp.vcxproj
index e6289edc..cf839cfa 100644
--- a/plugins/winamp/winamp.vcxproj
+++ b/plugins/winamp/winamp.vcxproj
@@ -27,9 +27,18 @@
     <TargetName>hcwinamp</TargetName>
     <OutDir>$(HexChatRel)plugins\</OutDir>
   </PropertyGroup>
-  <ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <ClCompile>
+      <PreprocessorDefinitions>WIN32;NDEBUG;_WINDOWS;_USRDLL;WINAMP_EXPORTS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+    </ClCompile>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
     <ClCompile>
       <PreprocessorDefinitions>WIN32;_WIN64;_AMD64_;NDEBUG;_WINDOWS;_USRDLL;WINAMP_EXPORTS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+    </ClCompile>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup>
+    <ClCompile>
       <AdditionalIncludeDirectories>$(DepsRoot)\include;$(Glib);..\..\src\common;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
     </ClCompile>
     <Link>