gint format_canon_makernote(ExifData *exif, unsigned char *tiff, guint offset,
guint size, ExifByteOrder byte_order);
-#define FORMAT_EXIF_CANON { FORMAT_EXIF_MATCH_MAKE, "Canon", 5, format_canon_makernote }
+#define FORMAT_EXIF_CANON { FORMAT_EXIF_MATCH_MAKE, "Canon", 5, "Canon", format_canon_makernote }
#endif