diff --git a/tests/unit/check_nbdtypes.c b/tests/unit/check_nbdtypes.c
index 122fe55..ef7360d 100644
--- a/tests/unit/check_nbdtypes.c
+++ b/tests/unit/check_nbdtypes.c
@@ -233,6 +233,7 @@ Suite * nbdtypes_suite(void)
     tcase_add_test(tc_init, test_init_size);
     tcase_add_test(tc_request, test_request_magic);
     tcase_add_test(tc_request, test_request_type);
+    tcase_add_test(tc_request, test_request_flags);
     tcase_add_test(tc_request, test_request_handle);
     tcase_add_test(tc_request, test_request_from);
     tcase_add_test(tc_request, test_request_len);