diff --git a/runtime/command-start/src/main/java/io/aklivity/zilla/runtime/command/start/internal/airline/ZillaStartCommand.java b/runtime/command-start/src/main/java/io/aklivity/zilla/runtime/command/start/internal/airline/ZillaStartCommand.java
index 79d462a608..3c10924e43 100644
--- a/runtime/command-start/src/main/java/io/aklivity/zilla/runtime/command/start/internal/airline/ZillaStartCommand.java
+++ b/runtime/command-start/src/main/java/io/aklivity/zilla/runtime/command/start/internal/airline/ZillaStartCommand.java
@@ -32,6 +32,7 @@
 import java.util.List;
 import java.util.Properties;
 import java.util.concurrent.CountDownLatch;
+import java.util.function.Consumer;
 
 import org.agrona.ErrorHandler;
 
@@ -147,10 +148,8 @@ public void run()
             }
         }
 
-        final ErrorHandler onError = ex ->
-        {
-            stop.countDown();
-        };
+        final ErrorHandler onError = ex -> stop.countDown();
+        final Consumer<Throwable> errorReporter = config.errorReporter();
 
         try (Engine engine = Engine.builder()
             .config(config)
@@ -171,8 +170,7 @@ public void run()
         }
         catch (Throwable ex)
         {
-            System.out.println("error");
-            onError.onError(ex);
+            errorReporter.accept(ex);
             rethrowUnchecked(ex);
         }
     }
diff --git a/runtime/command/src/main/java/io/aklivity/zilla/runtime/command/internal/ZillaMain.java b/runtime/command/src/main/java/io/aklivity/zilla/runtime/command/internal/ZillaMain.java
index 7d8a9c87fe..85e0a34195 100644
--- a/runtime/command/src/main/java/io/aklivity/zilla/runtime/command/internal/ZillaMain.java
+++ b/runtime/command/src/main/java/io/aklivity/zilla/runtime/command/internal/ZillaMain.java
@@ -70,7 +70,6 @@ private static int invoke(
             }
             catch (Throwable ex)
             {
-                // TODO: debug output
                 status = 1;
             }