diff --git a/src/ap/dpp_hostapd.c b/src/ap/dpp_hostapd.c
index 0ec0ec7ea..7beb5ba5a 100644
--- a/src/ap/dpp_hostapd.c
+++ b/src/ap/dpp_hostapd.c
@@ -1065,7 +1065,7 @@ static void hostapd_dpp_rx_peer_disc_req(struct hostapd_data *hapd,
 	os_get_time(&now);
 
 	if (hapd->conf->dpp_netaccesskey_expiry &&
-	    hapd->conf->dpp_netaccesskey_expiry < now.sec) {
+	    (os_time_t) hapd->conf->dpp_netaccesskey_expiry < now.sec) {
 		wpa_printf(MSG_INFO, "DPP: Own netAccessKey expired");
 		return;
 	}
@@ -1106,7 +1106,7 @@ static void hostapd_dpp_rx_peer_disc_req(struct hostapd_data *hapd,
 		return;
 	}
 
-	if (!expire || hapd->conf->dpp_netaccesskey_expiry < expire)
+	if (!expire || (os_time_t) hapd->conf->dpp_netaccesskey_expiry < expire)
 		expire = hapd->conf->dpp_netaccesskey_expiry;
 	if (expire)
 		expiration = expire - now.sec;
diff --git a/wpa_supplicant/dpp_supplicant.c b/wpa_supplicant/dpp_supplicant.c
index 3f3fd027e..07f2e943e 100644
--- a/wpa_supplicant/dpp_supplicant.c
+++ b/wpa_supplicant/dpp_supplicant.c
@@ -2235,7 +2235,7 @@ int wpas_dpp_check_connect(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid,
 	os_get_time(&now);
 
 	if (ssid->dpp_netaccesskey_expiry &&
-	    ssid->dpp_netaccesskey_expiry < now.sec) {
+	    (os_time_t) ssid->dpp_netaccesskey_expiry < now.sec) {
 		wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_MISSING_CONNECTOR
 			"netAccessKey expired");
 		return -1;