diff --git a/subsys/bluetooth/controller/ll_sw/pdu.h b/subsys/bluetooth/controller/ll_sw/pdu.h
index 0e7385ba85f..4c99a881199 100644
--- a/subsys/bluetooth/controller/ll_sw/pdu.h
+++ b/subsys/bluetooth/controller/ll_sw/pdu.h
@@ -224,7 +224,7 @@ struct pdu_adv_ext_hdr {
 #if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
 	uint8_t adv_addr:1;
 	uint8_t tgt_addr:1;
-	uint8_t rfu0:1;
+	uint8_t cte_info:1;
 	uint8_t adi:1;
 	uint8_t aux_ptr:1;
 	uint8_t sync_info:1;
@@ -236,7 +236,7 @@ struct pdu_adv_ext_hdr {
 	uint8_t sync_info:1;
 	uint8_t aux_ptr:1;
 	uint8_t adi:1;
-	uint8_t rfu0:1;
+	uint8_t cte_info:1;
 	uint8_t tgt_addr:1;
 	uint8_t adv_addr:1;
 #else
@@ -313,6 +313,20 @@ enum pdu_adv_aux_phy {
 	EXT_ADV_AUX_PHY_LE_COD = 0x02,
 };
 
+struct pdu_cte_info {
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+	uint8_t  time:5;
+	uint8_t  rfu:1;
+	uint8_t  type:2;
+#elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
+	uint8_t  type:2;
+	uint8_t  rfu:1;
+	uint8_t  time:5;
+#else
+#error "Unsupported endianness"
+#endif
+};
+
 struct pdu_adv_sync_info {
 #if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
 	uint16_t offs:13;