diff --git a/src/win/msvc15/global.props b/src/win/msvc15/global.props
index 653cbde..555d8a7 100644
--- a/src/win/msvc15/global.props
+++ b/src/win/msvc15/global.props
@@ -7,7 +7,7 @@
   </PropertyGroup>
   <ItemDefinitionGroup>
     <ClCompile>
-      <PreprocessorDefinitions>_USE_MATH_DEFINES;_CRT_NONSTDC_NO_DEPRECATE;_WINSOCK_DEPRECATED_NO_WARNINGS;_CRT_SECURE_NO_WARNINGS;USE_DYNAREC</PreprocessorDefinitions>
+      <PreprocessorDefinitions>_USE_MATH_DEFINES;_CRT_NONSTDC_NO_DEPRECATE;_WINSOCK_DEPRECATED_NO_WARNINGS;_CRT_SECURE_NO_WARNINGS;USE_DYNAREC;USE_OPENAL</PreprocessorDefinitions>
     </ClCompile>
   </ItemDefinitionGroup>
   <ItemGroup />