diff --git a/src/conio/conio_gdi.props b/src/conio/conio_gdi.props
index e3d4730133743708d95ddd6422fcd31ab8f67011..b1eebb9e6379208021d76f0664c961a1fc25cb5d 100644
--- a/src/conio/conio_gdi.props
+++ b/src/conio/conio_gdi.props
@@ -12,6 +12,7 @@
     </ClCompile>
     <Link>
       <AdditionalDependencies>winmm.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <SubSystem>Windows</SubSystem>
     </Link>
   </ItemDefinitionGroup>
   <ItemGroup />