diff --git a/EonaCat.LogStack/LogBuilder.cs b/EonaCat.LogStack/LogBuilder.cs
index 833049d..85cbd00 100644
--- a/EonaCat.LogStack/LogBuilder.cs
+++ b/EonaCat.LogStack/LogBuilder.cs
@@ -338,6 +338,7 @@ public sealed class LogBuilder
     public LogBuilder WriteToTcp(
         string host,
         int port,
+        int batchSize = 1,
         LogLevel minimumLevel = LogLevel.Trace,
         BackpressureStrategy backpressureStrategy = BackpressureStrategy.Wait,
         bool useTls = false,
@@ -357,6 +358,7 @@ public sealed class LogBuilder
         _flows.Add(new TcpFlow(
             host,
             port,
+            batchSize,
             minimumLevel,
             backpressureStrategy,
             useTls,