diff --git a/include/uapi/linux/dvb/aml_dmx_ext.h b/include/uapi/linux/dvb/aml_dmx_ext.h
index e4690685d044..9f32428478ab 100644
--- a/include/uapi/linux/dvb/aml_dmx_ext.h
+++ b/include/uapi/linux/dvb/aml_dmx_ext.h
@@ -35,7 +35,8 @@ enum dmx_input_source {
 /**
  * struct dmx_non_sec_es_header - non-sec Elementary Stream (ES) Header
  *
- * @pts_dts_flag:[1:0], 01:pts valid, 10:dts valid
+ * @pts_dts_flag:[1:0], 10:pts valid, 01:dts valid
+ * @pts_dts_flag:[3:2], 10:scb is scrambled, 01:pscp invalid
  * @pts:	pts value
  * @dts:	dts value
  * @len:	data len
@@ -50,7 +51,8 @@ struct dmx_non_sec_es_header {
 /**
  * struct dmx_sec_es_data - sec Elementary Stream (ES)
  *
- * @pts_dts_flag:[1:0], 01:pts valid, 10:dts valid
+ * @pts_dts_flag:[1:0], 10:pts valid, 01:dts valid
+ * @pts_dts_flag:[3:2], 10:scb is scrambled, 01:pscp invalid
  * @pts:	pts value
  * @dts:	dts value
  * @buf_start:	buf start addr