diff --git a/app/decoder/decoder.h b/app/decoder/decoder.h
index 033b26cd2..005283027 100644
--- a/app/decoder/decoder.h
+++ b/app/decoder/decoder.h
@@ -22,6 +22,7 @@
 #define DECODER_H
 
 #include <QObject>
+#include <QtGlobal>
 #include <stdint.h>
 
 #include "common/rational.h"