diff --git a/tests/units/send-async.test.ts b/tests/units/send-async.test.ts
index 13fbbca..f843c85 100644
--- a/tests/units/send-async.test.ts
+++ b/tests/units/send-async.test.ts
@@ -13,8 +13,6 @@ const lastError = {
   },
 }
 
-chrome.runtime.lastError
-
 afterEach(jest.clearAllMocks)
 
 test('sends async CoreMessage to runtime', () => {