diff --git a/build/scripts/module/audio.lua b/build/scripts/module/audio.lua
index 6fc37097d..38d5e5433 100644
--- a/build/scripts/module/audio.lua
+++ b/build/scripts/module/audio.lua
@@ -2,6 +2,8 @@ if (not _OPTIONS["united"]) then
 	project "NazaraAudio"
 end
 
+defines "NAZARA_AUDIO_OPENAL"
+
 files
 {
 	"../include/Nazara/Audio/**.hpp",