--- a/phy.c
+++ b/phy.c
@@ -359,3 +359,31 @@ COMMAND(set, antenna, "<bitmap> | all | 
 	NL80211_CMD_SET_WIPHY, 0, CIB_PHY, handle_antenna,
 	"Set a bitmap of allowed antennas to use for TX and RX.\n"
 	"The driver may reject antenna configurations it cannot support.");
+
+static int handle_antenna_gain(struct nl80211_state *state,
+			       struct nl_cb *cb,
+			       struct nl_msg *msg,
+			       int argc, char **argv,
+			       enum id_input id)
+{
+	char *endptr;
+	int dbm;
+
+	/* get the required args */
+	if (argc != 1)
+		return 1;
+
+	dbm = strtol(argv[0], &endptr, 10);
+	if (*endptr)
+		return 2;
+
+	NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_GAIN, dbm);
+
+	return 0;
+
+ nla_put_failure:
+	return -ENOBUFS;
+}
+COMMAND(set, antenna_gain, "<antenna gain in dBm>",
+	NL80211_CMD_SET_WIPHY, 0, CIB_PHY, handle_antenna_gain,
+	"Specify antenna gain.");
