diff --git a/test/repositories/UnoptimizedInMemoryRepositoryTests.test.ts b/test/repositories/UnoptimizedInMemoryRepositoryTests.test.ts
index 972c2d6..8035d50 100644
--- a/test/repositories/UnoptimizedInMemoryRepositoryTests.test.ts
+++ b/test/repositories/UnoptimizedInMemoryRepositoryTests.test.ts
@@ -21,8 +21,9 @@ describe("UnoptimizedInMemoryRepository", () => {
   describe("getSystems", () => {
     test("gets the systems stored in the repository", async () => {
       const mockSystems = generateMockSystems();
-      await repository.addOrUpdateSystem(mockSystems[0]);
-      await repository.addOrUpdateSystem(mockSystems[1]);
+      for (const system of mockSystems) {
+        await repository.addOrUpdateSystem(system);
+      }
 
       const result = await repository.getSystems();