diff --git a/drivers/net/wireless/ath/ath12k/wmi.c b/drivers/net/wireless/ath/ath12k/wmi.c
index d308a0e7f187..cd89032fa25e 100644
--- a/drivers/net/wireless/ath/ath12k/wmi.c
+++ b/drivers/net/wireless/ath/ath12k/wmi.c
@@ -1834,7 +1834,7 @@ static void ath12k_wmi_copy_peer_flags(struct wmi_peer_assoc_complete_cmd *cmd,
 		if (arg->bw_160)
 			cmd->peer_flags |= cpu_to_le32(WMI_PEER_160MHZ);
 		if (arg->bw_320)
-			cmd->peer_flags |= cpu_to_le32(WMI_PEER_EXT_320MHZ);
+			cmd->peer_flags_ext |= cpu_to_le32(WMI_PEER_EXT_320MHZ);
 
 		/* Typically if STBC is enabled for VHT it should be enabled
 		 * for HT as well