diff --git a/wpa_supplicant/wps_supplicant.c b/wpa_supplicant/wps_supplicant.c
index 130f3ab..915ca57 100644
--- a/wpa_supplicant/wps_supplicant.c
+++ b/wpa_supplicant/wps_supplicant.c
@@ -1869,6 +1869,7 @@ static int wpas_wps_use_cred(struct wpa_supplicant *wpa_s,
 }


+#ifdef CONFIG_WPS_ER
 static int wpas_wps_add_nfc_password_token(struct wpa_supplicant *wpa_s,
 					   struct wps_parse_attr *attr)
 {
@@ -1876,6 +1877,7 @@ static int
wpas_wps_add_nfc_password_token(struct wpa_supplicant *wpa_s,
 		wpa_s->wps->registrar, attr->oob_dev_password,
 		attr->oob_dev_password_len);
 }
+#endif /* CONFIG_WPS_ER */