diff --git a/ffmpegthumbnailer/libffmpegthumbnailer/filmstripfilter.h b/ffmpegthumbnailer/libffmpegthumbnailer/filmstripfilter.h

index 3394266..3313091 100644

--- a/ffmpegthumbnailer/libffmpegthumbnailer/filmstripfilter.h

+++ b/ffmpegthumbnailer/libffmpegthumbnailer/filmstripfilter.h

@@ -17,6 +17,7 @@

 #ifndef FILMSTRIPFILTER_H

 #define FILMSTRIPFILTER_H

+#include <libio.h>

 #include "ifilter.h"

 namespace ffmpegthumbnailer