diff --git a/deps/ox/src/ox/std/test/tests.cpp b/deps/ox/src/ox/std/test/tests.cpp
index 69808814..e0ad7165 100644
--- a/deps/ox/src/ox/std/test/tests.cpp
+++ b/deps/ox/src/ox/std/test/tests.cpp
@@ -45,6 +45,7 @@ uint64_t timeMapStrToUuid(int elemCnt, int lookups, uint64_t seed = 4321) noexce
 	for (int i = 0; i < lookups; ++i) {
 		auto const&k = keys[rand.gen() % keys.size()];
 		map[k];
+		oxExpect(map[k], ox::UUID::fromString(k).unwrap());
 	}
 	return nowMs() - startTime;
 }