diff --git a/test/testHelpers/apolloTestServerHelpers.ts b/test/testHelpers/apolloTestServerHelpers.ts
index b0d2b05..d537881 100644
--- a/test/testHelpers/apolloTestServerHelpers.ts
+++ b/test/testHelpers/apolloTestServerHelpers.ts
@@ -37,6 +37,7 @@ export function setupTestServerContext() {
 
   beforeEach(() => {
     context.systems = systems;
+    context.findSystemById = async (_: string) => systems[0];
   });
 
   return context as ServerContext;