diff --git a/drivers/staging/rtl8723au/core/rtw_mlme_ext.c b/drivers/staging/rtl8723au/core/rtw_mlme_ext.c
index bed7eb764a51df635a871151ea9cea9a99a4ddb2..59047ad89b31786d7aa5e93344f36d5e831983c9 100644
--- a/drivers/staging/rtl8723au/core/rtw_mlme_ext.c
+++ b/drivers/staging/rtl8723au/core/rtw_mlme_ext.c
@@ -5945,7 +5945,8 @@ int sitesurvey_cmd_hdl23a(struct rtw_adapter *padapter, const u8 *pbuf)
 		for (i = 0; i < RTW_SSID_SCAN_AMOUNT; i++) {
 			if (pparm->ssid[i].ssid_len) {
 				memcpy(pmlmeext->sitesurvey_res.ssid[i].ssid,
-				       pparm->ssid[i].ssid, IW_ESSID_MAX_SIZE);
+				       pparm->ssid[i].ssid,
+				       IEEE80211_MAX_SSID_LEN);
 				pmlmeext->sitesurvey_res.ssid[i].ssid_len =
 					pparm->ssid[i].ssid_len;
 			} else {
diff --git a/drivers/staging/rtl8723au/include/ieee80211.h b/drivers/staging/rtl8723au/include/ieee80211.h
index c2c57c7b233721ae903bcb826505cacad6202791..43f002db937c10b85c6834b0c508cedc9ecdcc21 100644
--- a/drivers/staging/rtl8723au/include/ieee80211.h
+++ b/drivers/staging/rtl8723au/include/ieee80211.h
@@ -309,8 +309,6 @@ struct ieee80211_snap_hdr {
 #define MAX_P2P_IE_LEN		256
 #define MAX_WFD_IE_LEN		128
 
-#define IW_ESSID_MAX_SIZE	32
-
 /*
 join_res:
 -1: authentication fail
diff --git a/drivers/staging/rtl8723au/os_dep/ioctl_cfg80211.c b/drivers/staging/rtl8723au/os_dep/ioctl_cfg80211.c
index 2fdc2b58312bc4619d8b43da3f7f4ab905ea5d9c..5e0513409214c8bbdd960d552e253ff035f7d09b 100644
--- a/drivers/staging/rtl8723au/os_dep/ioctl_cfg80211.c
+++ b/drivers/staging/rtl8723au/os_dep/ioctl_cfg80211.c
@@ -2020,7 +2020,7 @@ static int cfg80211_rtw_connect(struct wiphy *wiphy, struct net_device *ndev,
 		goto exit;
 	}
 
-	if (sme->ssid_len > IW_ESSID_MAX_SIZE) {
+	if (sme->ssid_len > IEEE80211_MAX_SSID_LEN) {
 		ret = -E2BIG;
 		goto exit;
 	}