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