diff --git a/tools/mgmt-tester.c b/tools/mgmt-tester.c
index ade3988..fb9443f 100644
--- a/tools/mgmt-tester.c
+++ b/tools/mgmt-tester.c
@@ -950,6 +950,7 @@ static const struct generic_data load_link_keys_invalid_params_test_2 = {
 };
 
 static const char load_ltks_valid_param_1[] = { 0x00, 0x00 };
+static const char load_ltks_invalid_param_1[] = { 0x01, 0x00 };
 
 static const struct generic_data load_ltks_success_test_1 = {
 	.send_opcode = MGMT_OP_LOAD_LONG_TERM_KEYS,
@@ -958,6 +959,13 @@ static const struct generic_data load_ltks_success_test_1 = {
 	.expect_status = MGMT_STATUS_SUCCESS,
 };
 
+static const struct generic_data load_ltks_invalid_params_test_1 = {
+	.send_opcode = MGMT_OP_LOAD_LONG_TERM_KEYS,
+	.send_param = load_ltks_invalid_param_1,
+	.send_len = sizeof(load_ltks_invalid_param_1),
+	.expect_status = MGMT_STATUS_INVALID_PARAMS,
+};
+
 static void powered_delay(void *user_data)
 {
 	tester_setup_complete();
@@ -1478,6 +1486,9 @@ int main(int argc, char *argv[])
 
 	test_bredr("Load Long Term Keys - Success 1",
 			&load_ltks_success_test_1, NULL, test_command_generic);
+	test_bredr("Load Long Term Keys - Invalid Parameters 1",
+			&load_ltks_invalid_params_test_1, NULL,
+			test_command_generic);
 
 	return tester_run();
 }