1 files changed, 3 insertions, 1 deletions
diff --git a/tracker-hatire/ftnoir_tracker_hat.h b/tracker-hatire/ftnoir_tracker_hat.h
index 01b2afff..47f66812 100644
--- a/tracker-hatire/ftnoir_tracker_hat.h
+++ b/tracker-hatire/ftnoir_tracker_hat.h
@@ -5,6 +5,8 @@
 #include "ftnoir_tracker_hat_settings.h"
 #include "ftnoir_arduino_type.h"
 
+#include <atomic>
+
 #include <QObject>
 #include <QPalette>
 #include <QtGui>
@@ -41,7 +43,7 @@ private:
 
     int frame_cnt;
 
-    volatile int CptError;
+    std::atomic<int> CptError;
 
     static inline QByteArray to_latin1(const QString& str) { return str.toLatin1(); }
 };