diff --git a/libavdevice/libdc1394.c b/libavdevice/libdc1394.c
index f030e3e31d..cc348d4e84 100644
--- a/libavdevice/libdc1394.c
+++ b/libavdevice/libdc1394.c
@@ -75,6 +75,7 @@ struct dc1394_frame_format {
     int frame_size_id;
 } dc1394_frame_formats[] = {
     { 320, 240, AV_PIX_FMT_UYVY422,   DC1394_VIDEO_MODE_320x240_YUV422 },
+    { 640, 480, AV_PIX_FMT_GRAY8,     DC1394_VIDEO_MODE_640x480_MONO8 },
     { 640, 480, AV_PIX_FMT_UYYVYY411, DC1394_VIDEO_MODE_640x480_YUV411 },
     { 640, 480, AV_PIX_FMT_UYVY422,   DC1394_VIDEO_MODE_640x480_YUV422 },
     { 0, 0, 0, 0 } /* gotta be the last one */