diff --git a/libcopybit/c2d2.h b/libcopybit/c2d2.h
index 821a6d5..2ee71b1 100644
--- a/libcopybit/c2d2.h
+++ b/libcopybit/c2d2.h
@@ -72,6 +72,7 @@
     C2D_FORMAT_MACROTILED        = (1 << 16), /* tiled in macro level */
     C2D_FORMAT_TILED_4x4         = (1 << 17), /* 4x4 tiled format */
     C2D_FORMAT_SWAP_RB           = (1 << 18), /* Swap R & B color components */
+    C2D_FORMAT_BT601_FULLRANGE   = (1 << 20), /* YUV format is full range following BT 601 */
     C2D_FORMAT_UBWC_COMPRESSED   = (1 << 23), /* UBWC compressed format */
 } C2D_FORMAT_MODE;