1 files changed, 3 insertions, 2 deletions
diff --git a/Stars45/SoundCard.h b/Stars45/SoundCard.h
index 4c4e2cb..a791c81 100644
--- a/Stars45/SoundCard.h
+++ b/Stars45/SoundCard.h
@@ -14,9 +14,10 @@
 #ifndef SoundCard_h
 #define SoundCard_h
 
+#include <mutex>
+
 #include "Types.h"
 #include "List.h"
-#include "ThreadSync.h"
 
 // +--------------------------------------------------------------------+
 
@@ -68,7 +69,7 @@ protected:
     HANDLE         hthread;
     SoundStatus    status;
     List<Sound>    sounds;
-    ThreadSync     sync;
+    std::mutex     sync;
 };
 
 #endif  // SoundCard_h