diff --git a/src/ap/dpp_hostapd.c b/src/ap/dpp_hostapd.c
index a84654d2d..7184f7204 100644
--- a/src/ap/dpp_hostapd.c
+++ b/src/ap/dpp_hostapd.c
@@ -1119,6 +1119,12 @@ static void hostapd_dpp_gas_resp_cb(void *ctx, const u8 *addr, u8 dialog_token,
 
 	hostapd_dpp_handle_config_obj(hapd, auth);
 	status = DPP_STATUS_OK;
+#ifdef CONFIG_TESTING_OPTIONS
+	if (dpp_test == DPP_TEST_REJECT_CONFIG) {
+		wpa_printf(MSG_INFO, "DPP: TESTING - Reject Config Object");
+		status = DPP_STATUS_CONFIG_REJECTED;
+	}
+#endif /* CONFIG_TESTING_OPTIONS */
 fail:
 	if (status != DPP_STATUS_OK)
 		wpa_msg(hapd->msg_ctx, MSG_INFO, DPP_EVENT_CONF_FAILED);
diff --git a/src/common/dpp.h b/src/common/dpp.h
index 4af913bc1..fe4b7f3a2 100644
--- a/src/common/dpp.h
+++ b/src/common/dpp.h
@@ -345,6 +345,7 @@ enum dpp_test_behavior {
 	DPP_TEST_STOP_AT_AUTH_RESP = 88,
 	DPP_TEST_STOP_AT_AUTH_CONF = 89,
 	DPP_TEST_STOP_AT_CONF_REQ = 90,
+	DPP_TEST_REJECT_CONFIG = 91,
 };
 
 extern enum dpp_test_behavior dpp_test;
diff --git a/wpa_supplicant/dpp_supplicant.c b/wpa_supplicant/dpp_supplicant.c
index 8de53ad8b..411bfff83 100644
--- a/wpa_supplicant/dpp_supplicant.c
+++ b/wpa_supplicant/dpp_supplicant.c
@@ -1428,6 +1428,12 @@ static void wpas_dpp_gas_resp_cb(void *ctx, const u8 *addr, u8 dialog_token,
 		goto fail;
 
 	status = DPP_STATUS_OK;
+#ifdef CONFIG_TESTING_OPTIONS
+	if (dpp_test == DPP_TEST_REJECT_CONFIG) {
+		wpa_printf(MSG_INFO, "DPP: TESTING - Reject Config Object");
+		status = DPP_STATUS_CONFIG_REJECTED;
+	}
+#endif /* CONFIG_TESTING_OPTIONS */
 fail:
 	if (status != DPP_STATUS_OK)
 		wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_CONF_FAILED);