diff --git a/dp/inc/cdp_txrx_cmn_struct.h b/dp/inc/cdp_txrx_cmn_struct.h
index 2d1e8055f7..e6998d55ff 100644
--- a/dp/inc/cdp_txrx_cmn_struct.h
+++ b/dp/inc/cdp_txrx_cmn_struct.h
@@ -116,6 +116,8 @@
 #define CDP_DATA_NON_QOS_TID 16
 
 #define CDP_NUM_SA_BW 4
+/* Smart Antenna 320MHz BW Phy MAX Rate Code Index */
+#define CDP_SA_BW320_INX 4
 #define CDP_PERCENT_MACRO 100
 #define CDP_NUM_KB_IN_MB 1000
 /*
diff --git a/dp/wifi3.0/monitor/dp_mon.c b/dp/wifi3.0/monitor/dp_mon.c
index ae6a62408a..028a281f3a 100644
--- a/dp/wifi3.0/monitor/dp_mon.c
+++ b/dp/wifi3.0/monitor/dp_mon.c
@@ -4168,7 +4168,7 @@ static void dp_process_ppdu_stats_user_cmpltn_common_tlv(
 
 	tag_buf++;
 	/* Extract 320MHz MAX PHY ratecode */
-	ppdu_user_desc->sa_max_rates[bw_iter] =
+	ppdu_user_desc->sa_max_rates[CDP_SA_BW320_INX] =
 		HTT_PPDU_STATS_USER_CMPLTN_COMMON_TLV_MAX_RATES_GET(*tag_buf);
 }