1 files changed, 3 insertions, 2 deletions
diff --git a/Stars45/MusicDirector.h b/Stars45/MusicDirector.h
index 293b6d7..8fc6812 100644
--- a/Stars45/MusicDirector.h
+++ b/Stars45/MusicDirector.h
@@ -16,10 +16,11 @@
 #ifndef MusicDirector_h
 #define MusicDirector_h
 
+#include <mutex>
+
 #include "Types.h"
 #include "List.h"
 #include "Text.h"
-#include "ThreadSync.h"
 
 // +-------------------------------------------------------------------+
 
@@ -108,7 +109,7 @@ protected:
     bool              no_music;
 
     HANDLE            hproc;
-    ThreadSync        sync;
+    std::mutex        sync;
 };
 
 #endif  // MusicDirector_h
 \ No newline at end of file