diff --git a/tests/unit/services/command.test.ts b/tests/unit/services/command.test.ts
index 5ddb92d..8e37856 100644
--- a/tests/unit/services/command.test.ts
+++ b/tests/unit/services/command.test.ts
@@ -17,6 +17,8 @@ beforeEach(() => {
   initializeDatabase(memDb);
   (CommandService as any).dbInstance = memDb;
   (TaskService as any).dbInstance = memDb;
+  (GroupSyncService as any).dbInstance = memDb;
+  GroupSyncService.activeGroupsCache.clear();
 });
 
 test('listar grupo por defecto con /t ver en grupo e incluir “… y X más”', async () => {