--- a/media/libcubeb/src/cubeb_opensl.c
+++ b/media/libcubeb/src/cubeb_opensl.c
@@ -231,17 +231,16 @@ opensl_set_shutdown(cubeb_stream * stm, 
   assert(value == 0 || value == 1);
   stm->shutdown = value;
 }
 
 static void
 play_callback(SLPlayItf caller, void * user_ptr, SLuint32 event)
 {
   cubeb_stream * stm = user_ptr;
-  int draining;
   assert(stm);
   switch (event) {
     case SL_PLAYEVENT_HEADATMARKER:
       opensl_notify_drained(stm);
     break;
   default:
     break;
   }