diff --git a/src/audio/baudio/SDL_beaudio.cc b/src/audio/baudio/SDL_beaudio.cc
index 86fb78153..e4a802726 100644
--- a/src/audio/baudio/SDL_beaudio.cc
+++ b/src/audio/baudio/SDL_beaudio.cc
@@ -35,7 +35,6 @@ extern "C"
 #include "SDL_audio.h"
 #include "../SDL_audio_c.h"
 #include "../SDL_sysaudio.h"
-#include "../../thread/beos/SDL_systhread_c.h"
 #include "SDL_beaudio.h"
 
 }