diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c
index e23a8d14578a..d399a7367ce9 100644
--- a/drivers/net/wireless/mac80211_hwsim.c
+++ b/drivers/net/wireless/mac80211_hwsim.c
@@ -2541,7 +2541,9 @@ static int mac80211_hwsim_get_radio(struct sk_buff *skb,
 	if (cb)
 		genl_dump_check_consistent(cb, hdr, &hwsim_genl_family);
 
-	param.reg_alpha2 = data->alpha2;
+	if (data->alpha2[0] && data->alpha2[1])
+		param.reg_alpha2 = data->alpha2;
+
 	param.reg_strict = !!(data->hw->wiphy->regulatory_flags &
 					REGULATORY_STRICT_REG);
 	param.p2p_device = !!(data->hw->wiphy->interface_modes &