diff --git a/bristol/libbristolaudio/audioEngineJack.c b/bristol/libbristolaudio/audioEngineJack.c
index 2b8900b..8450fd1 100644
--- a/bristol/libbristolaudio/audioEngineJack.c
+++ b/bristol/libbristolaudio/audioEngineJack.c
@@ -38,9 +38,6 @@
 #include <string.h>
 
 #ifdef _BRISTOL_JACK
-#if (BRISTOL_HAS_ALSA == 1)
-#include <alsa/iatomic.h>
-#endif
 
 /*
  * Drop this atomic stuff, it comes from the ALSA library and it not present on
@@ -53,7 +50,7 @@
 #ifdef DONT_USE_THIS //IATOMIC_DEFINED // Not very portable
 atomic_t closedown = ATOMIC_INIT(1);
 #else
-int closedown = 1;
+volatile int closedown = 1;
 #endif
 
 #include "bristol.h"