diff --git a/drivers/SCsub b/drivers/SCsub
index bfd35344ea..67fbfeb576 100644
--- a/drivers/SCsub
+++ b/drivers/SCsub
@@ -7,6 +7,7 @@ Export('env')
 
 SConscript('unix/SCsub');
 SConscript('alsa/SCsub');
+SConscript('ao/SCsub');
 SConscript('windows/SCsub');
 SConscript('gles2/SCsub');
 SConscript('gles1/SCsub');