diff --git a/Kha/Backends/Kinc-HL/kfile.js b/Kha/Backends/Kinc-HL/kfile.js
index a92b2a0..12c23a8 100644
--- a/Kha/Backends/Kinc-HL/kfile.js
+++ b/Kha/Backends/Kinc-HL/kfile.js
@@ -9,6 +9,7 @@ if (platform == Platform.OSX) project.addDefine('KORE_DEBUGDIR="osx-hl"');
 if (platform == Platform.iOS) project.addDefine('KORE_DEBUGDIR="ios-hl"');
 if (platform !== Platform.Windows || audio !== AudioApi.DirectSound) {
 	project.addDefine('KORE_MULTITHREADED_AUDIO');
+	project.addDefine('KINC_MULTITHREADED_AUDIO');
 }
 
 project.addDefine('KORE');