diff --git a/bin/marketmaker b/bin/marketmaker
index e24e1dc..6b61559 100755
--- a/bin/marketmaker
+++ b/bin/marketmaker
@@ -6,6 +6,7 @@ import os
 import os.path
 import rx
 import sys
+import threading
 import typing
 
 from decimal import Decimal
@@ -250,10 +251,13 @@ pulse_disposable = rx.interval(args.pulse_interval).subscribe(
     on_next=lambda _: market_maker.pulse(context, model_state))
 disposer.add_disposable(pulse_disposable)
 
-print("Press <ENTER> to quit.")
+# Wait - don't exit. Exiting will be handled by signals/interrupts.
+waiter = threading.Event()
+try:
+    waiter.wait()
+except:
+    pass
 
-# Wait - don't exit
-input()
 print("Shutting down...")
 ws.close()
 disposer.dispose()
diff --git a/mango/marketmaking/ordertracker.py b/mango/marketmaking/ordertracker.py
index 7c2bf54..c2571f4 100644
--- a/mango/marketmaking/ordertracker.py
+++ b/mango/marketmaking/ordertracker.py
@@ -36,7 +36,6 @@ class OrderTracker:
         self.tracked += [order]
 
     def existing_orders(self, model_state: ModelState) -> typing.Sequence[mango.Order]:
-        print("Model State Orders", model_state.placed_orders)
         live_orders: typing.List[mango.Order] = []
         for placed_order in model_state.placed_orders:
             details = self._find_tracked(placed_order.client_id)