diff --git a/src/ap/ctrl_iface_ap.c b/src/ap/ctrl_iface_ap.c
index 3128aed6f..c69371511 100644
--- a/src/ap/ctrl_iface_ap.c
+++ b/src/ap/ctrl_iface_ap.c
@@ -1,6 +1,6 @@
 /*
  * Control interface for shared AP commands
- * Copyright (c) 2004-2014, Jouni Malinen <j@w1.fi>
+ * Copyright (c) 2004-2019, Jouni Malinen <j@w1.fi>
  *
  * This software may be distributed under the terms of the BSD license.
  * See README for more details.
@@ -451,11 +451,11 @@ static int p2p_manager_disconnect(struct hostapd_data *hapd, u16 stype,
 	if (stype == WLAN_FC_STYPE_DEAUTH) {
 		mgmt->u.deauth.reason_code =
 			host_to_le16(WLAN_REASON_PREV_AUTH_NOT_VALID);
-		pos = (u8 *) (&mgmt->u.deauth.reason_code + 1);
+		pos = mgmt->u.deauth.variable;
 	} else {
 		mgmt->u.disassoc.reason_code =
 			host_to_le16(WLAN_REASON_PREV_AUTH_NOT_VALID);
-		pos = (u8 *) (&mgmt->u.disassoc.reason_code + 1);
+		pos = mgmt->u.disassoc.variable;
 	}
 
 	*pos++ = WLAN_EID_VENDOR_SPECIFIC;