diff --git a/include/midi_time.h b/include/midi_time.h
index 7e637931c..13991139d 100644
--- a/include/midi_time.h
+++ b/include/midi_time.h
@@ -28,13 +28,14 @@
 #define _MIDI_TIME_H
 
 #include "types.h"
+#include "export.h"
 
 const int DefaultTicksPerTact = 192;
 const int DefaultStepsPerTact = 16;
 const int DefaultBeatsPerTact = DefaultTicksPerTact / DefaultStepsPerTact;
 
 
-class midiTime
+class EXPORT midiTime
 {
 public:
 	inline midiTime( const tact _tact, const tick _ticks ) :