diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
index 4157c90ad973..083e5ce7eac7 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
@@ -6916,7 +6916,7 @@ static void brcmf_cfg80211_reg_notifier(struct wiphy *wiphy,
 		return;
 
 	/* ignore non-ISO3166 country codes */
-	for (i = 0; i < sizeof(req->alpha2); i++)
+	for (i = 0; i < 2; i++)
 		if (req->alpha2[i] < 'A' || req->alpha2[i] > 'Z') {
 			brcmf_err("not an ISO3166 code (0x%02x 0x%02x)\n",
 				  req->alpha2[0], req->alpha2[1]);