diff --git a/tests/test_imapserver_imaplib.py b/tests/test_imapserver_imaplib.py
index d4f1199..79a4d32 100644
--- a/tests/test_imapserver_imaplib.py
+++ b/tests/test_imapserver_imaplib.py
@@ -260,7 +260,7 @@ async def test_store(with_server):
     imap_client = await login_user('user', 'pass', select=True)
 
     result, data = await asyncio.wait_for(
-        asyncio.get_running_loop().run_in_executor(None, functools.partial(imap_client.uid, 'store', '1', '+FLAGS.SILENT (\Seen \Answered)')), 1)
+        asyncio.get_running_loop().run_in_executor(None, functools.partial(imap_client.uid, 'store', '1', '+FLAGS.SILENT', '(\Seen \Answered)')), 1)
     assert 'OK' == result
 
     result, data = await asyncio.wait_for(
@@ -283,7 +283,7 @@ async def test_store_and_search_by_keyword(with_server):
     assert [b''] == data
 
     result, data = await asyncio.wait_for(
-        asyncio.get_running_loop().run_in_executor(None, functools.partial(imap_client.uid, 'store', '1', '+FLAGS (FOO)')), 1)
+        asyncio.get_running_loop().run_in_executor(None, functools.partial(imap_client.uid, 'store', '1', '+FLAGS', '(FOO)')), 1)
     assert 'OK' == result
 
     result, data = await asyncio.wait_for(