diff --git a/encodedv/dvconnect.c b/encodedv/dvconnect.c
index f276846..10be339 100644
--- a/encodedv/dvconnect.c
+++ b/encodedv/dvconnect.c
@@ -117,6 +117,13 @@ struct video1394_wait
 #define VIDEO1394_LISTEN_POLL_BUFFER	\
 	_IOWR('#', 0x18, struct video1394_wait)
 
+#ifdef __GNU__
+#define _IOT_video1394_mmap			\
+	_IOT(_IOTS(int), 1, _IOTS(unsigned int), 7, 0, 0)
+#define _IOT_video1394_wait			\
+	_IOT(_IOTS(unsigned int), 2, _IOTS(struct timeval), 1, 0, 0)
+#endif
+
 static int cap_start_frame = 0;
 static int cap_num_frames = 0xfffffff;
 static int cap_verbose_mode;