diff --git a/tests/ChatClient.hs b/tests/ChatClient.hs
index 36bdf92dbf..75b85d7a5f 100644
--- a/tests/ChatClient.hs
+++ b/tests/ChatClient.hs
@@ -51,6 +51,7 @@ import qualified Simplex.Messaging.Crypto.Ratchet as CR
 import Simplex.Messaging.Protocol (srvHostnamesSMPClientVersion)
 import Simplex.Messaging.Server (runSMPServerBlocking)
 import Simplex.Messaging.Server.Env.STM
+import Simplex.Messaging.Server.MsgStore.Types (AMSType (..), SMSType (..))
 import Simplex.Messaging.Transport
 import Simplex.Messaging.Transport.Server (ServerCredentials (..), defaultTransportServerConfig)
 import Simplex.Messaging.Version
@@ -424,6 +425,9 @@ smpServerCfg =
       tbqSize = 1,
       -- serverTbqSize = 1,
       msgQueueQuota = 16,
+      msgStoreType = AMSType SMSMemory,
+      maxJournalMsgCount = 1000,
+      maxJournalStateLines = 1000,
       queueIdBytes = 12,
       msgIdBytes = 6,
       storeLogFile = Nothing,